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<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> - December 2011 - Volume 6, Issue 4 - www.smiledentaljournal.com - Distributed free of charge<br />

<strong>Dental</strong> <strong>Journal</strong><br />

Adhesion of Candida<br />

Albicans to Denture<br />

Base and Denture<br />

Liners with Different<br />

Surface Roughness<br />

An In-vitro Study<br />

Solving TMJ Problems<br />

with Orthodontic Treatment<br />

and Cosmetic Mouth<br />

Rehabilitation<br />

Case Series<br />

<strong>Dental</strong> Implants’<br />

Homepages:<br />

Are they Educative?<br />

A Cross-Sectional Study<br />

The Diagnosis and<br />

Management of<br />

Impacted<br />

Maxillary Canines<br />

Outcomes Following<br />

Zygomatic<br />

A Retrospective Study<br />

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<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong><br />

December 2011<br />

Volume 6, Issue 4<br />

Quarterly Issued<br />

Distributed Free of Charge<br />

+962 7 96367954<br />

Amman, Jordan<br />

+961 70 32 32 75<br />

Lebanon<br />

sola@smiledentaljournal.com<br />

www.smiledentaljournal.com<br />

Director<br />

Dr. Ma’moon A. Salhab<br />

Director in Charge &<br />

Chief Editor<br />

Dr. Issa S. Bader<br />

Editorial Director<br />

Dr. Hassan A. Maghaireh<br />

Marketing Director<br />

Solange R. Sfeir<br />

Art & Design<br />

Solange R. Sfeir<br />

Cover Design<br />

Stephanie S. Moufarrej<br />

Published by MENA Co. for<br />

<strong>Dental</strong> Services<br />

Jordanian National Library<br />

Registration # 3954/2008/P<br />

ISSN 2072-473X<br />

Printed By:<br />

Ad-Dustour Commercial Printing Press<br />

Amman, Jordan<br />

Mission Statement<br />

Bridging the gap between advanced upto-date<br />

peer-reviewed dental literature and<br />

the dental practitioners enabling them to<br />

do their jobs better- is our ultimate target.<br />

Besides, <strong>Smile</strong> provides readers with<br />

information regarding the available dental<br />

products, armamentarium, news<br />

and proceedings of dental symposia,<br />

workshops and conferences.<br />

Disclaimer<br />

<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> makes every<br />

effort to report clinical information and<br />

manufacturers’ product news accurately, but<br />

cannot assume responsibility for the validity<br />

of product claims or typographical errors.<br />

Opinions or interpretations expressed by the<br />

authors are their own and do not necessarily<br />

reflect nor hold <strong>Smile</strong> team responsible for<br />

the validity of the content.<br />

Editorial Review Board<br />

• Prof. Dr. Marco Esposito / Italy<br />

DDS, PhD Implant Dentistry & Periodontics<br />

• Prof. Louis Hardan / Lebanon<br />

DDS, DEA, PhD, Restorative & Esthetic Dentistry<br />

• Dr. Maher Abdeljawad / Jordan<br />

BDS, MDentSci, Restorative Dentistry<br />

• Dr. Hani Abudiak / UK<br />

BDS, MFDS RCSFRCD, PhD Paediatric Dentistry<br />

• Dr. Eyas Abu-Hijleh / UAE<br />

DDS, PhD, Orthodontics & Dentofacial Orthopedics<br />

• Dr. Layla Abu-Naba’a / Jordan<br />

BDS, MFD, RCS, PhD, Prosthodontics<br />

• Dr. Ali Abu Nemeh / Jordan<br />

BDS, NDB, MSc, Endodontics<br />

• Dr. Hazem Al-Ahmad / Jordan<br />

BDS, MSc, FDSRCS, Maxillo-Facial Surgery<br />

• Dr. Muna Al-Ali / Australia<br />

BDS, MFDS<br />

• Dr. Suhail H. Al-Amad / UAE<br />

D.Clin.Dent (Melb), FRACDS-Oral Med, GradDip<br />

ForOdont (Melb), JMC-Oral Med<br />

• Dr. Zaid Al-Bitar / Jordan<br />

BDS, MSc, MOrth, RCS, Orthodontics<br />

• Dr. Wesam Aleid / UK<br />

BDS, MBBS, MRCSEd, FFDRCSI(OSOM), FRCS(OMFS)<br />

Oral, facial, and Head & Neck Surgeon<br />

• Dr. Raed Al-Jallad / Palestine<br />

BDS, MSc, FFDRCS, FDSRCS, Oral & Maxillofacial Surgery<br />

• Dr. Hani Al Kadi / KSA<br />

BDS, Dip ODONT, MDS, Endodontics<br />

• Dr. Alan Al-Qassab / Erbil-Iraq<br />

BDS, HDD (Ortho), MSc, MOMS RCPS(Glasg), Oral &<br />

Maxillofacial Surgery<br />

• Dr. Mohammad Al-Rabab’ah / Jordan<br />

BDS, MFD RCSIre, MRD(Pros), RCSEd, JB(Cons) PhD<br />

• Dr. Hatem Al-Rashdan/ Jordan<br />

BDS, MSc, Jordanian Board of Maxillofacial Surgery<br />

• Dr. Majd Al-Saleh / Jordan<br />

BDS, DDS, MSc, Pediatric Dentistry<br />

• Dr. Ahmad Al-Tarawneh / Jordan<br />

DDS, M.Clin.Dent, Jordanian Board of Orthodontics<br />

• Dr. Hayder Al-Waeli / Jordan<br />

BDS, MSc, Jordanian Board of Periodontology<br />

• Dr. Muayad Assaf / Jordan<br />

BDS, MSc Endodontics<br />

• Dr. Manal Azzeh / Jordan<br />

BDS, MSc, Jordanian Board of Periodontology<br />

• Dr. Lama Jarrah / Jordan<br />

BDS, MSc, Jordanian Board of Orthodontics<br />

• Dr. Ghada Karien / Jordan<br />

BDS, JDB, Pediatric Dentistry<br />

• Dr. Edgard El Chaar / USA<br />

DDS, MS. Periodontology & Implantology<br />

• Dr. Ahmad Kutkut / USA<br />

DDS, MS, Prosthodontics, USA<br />

• Dr. Yousef Sadik Marafie / Kuwait<br />

BDS, MSD, Prosthodontics<br />

• Dr. Hakam Mousa / Jordan<br />

BDS, MSD, Operative Dentistry<br />

• Dr. Jumana Sabbarini / Jordan<br />

BDS, MSc, Jordanian Board of Pediatric Dentistry<br />

• Dr. Samer Sunna / Jordan<br />

BDS, MSc, M.Orth, RCS, Orthodontics<br />

• Dr. Marwan Qasem / Palestine<br />

DDS, PG Fellowship Imlpantology<br />

• Dr. Thamer Theeb / Jordan<br />

BDS, MSc, Prosthodontics<br />

• Dr. Leema Yaghmour / Jordan<br />

BDS, DUA, DUB, Pediatric & Community Dentistry<br />

International Advisory Board<br />

• Prof. Abdullah Al-Shammery / KSA<br />

BDS, MS Restorative Dentistry / Rector, Riyadh Colleges of<br />

Dentistry & Pharmacy<br />

• Prof. Magid Amin Ahmed / Egypt<br />

Oral & Maxillo-Facial Surgery / Vice President MSA University<br />

Dean, Faculty of Dentistry MSA University<br />

• Prof. Jamal Aqrabawi / Jordan<br />

DDS, DSc, DMD Endodontics / <strong>Dental</strong> Faculty, University of Jordan<br />

• Prof. Nabil Barakat / Lebanon<br />

DDS, MSc, FICD Maxillo-Facial Surgery / President of LAO & EMAO<br />

• Prof. Stephen Cohen / USA<br />

MA, DDS, FICD, FACD, Diplomate, American Board of Endodontics<br />

• Prof. Azmi Darwazeh / Jordan<br />

BDS, MSc, PhD Oral Pathology Oral Medicine / Former Dean, Faculty<br />

of Dentistry JUST / Examiner, Faculty of Dentistry RCS Ireland<br />

• Prof. Mohamed Sherine Elattar / Egypt<br />

BDS, MSc, PhD Prosthodontics / Former Dean, Faculty of Dentistry,<br />

Pharos University / President of AOIA<br />

• Prof. Fouad Kadim / Jordan<br />

BDS, MSc, PhD Conservative Dentistry / Vice Dean, Faculty of<br />

Dentistry, University of Jordan<br />

• Prof. Howard Lieb / USA<br />

DMD General Dentistry & Management Sciences / College of<br />

Dentistry, New York University<br />

• Prof. Edward Lynch / UK<br />

PhD (Lon), MA, BDentSc, TCD, FDSRCS (Ed), FADFE, FDSRCS (Lon)<br />

Head of <strong>Dental</strong> Education and Research Warwick University<br />

• Prof. Lamis D. Rajab / Jordan<br />

DDS, PhD, Pediatric Dentistry / Former Dean, Faculty of Dentistry,<br />

University of Jordan<br />

• Prof. Issam Shaaban / Syria<br />

BDS, PhD, Maxillo-Facial Surgery / Former Dean, Faculty of<br />

Dentistry Damascus University / President of Syrian OMFS Society<br />

• Prof. Yousef Talic / KSA<br />

BDS, MSc, DASO, FICOI, FICD, Consultant in Prosthodontics &<br />

Implantology, College of Dentistry, King Saud University<br />

• Prof. Abbas Zaher / Egypt<br />

BDS, MS, PhD Orthodontics, Professor of Orthodontics / Vice-<br />

Dean, Alexandria University / Vice-President, World Federation of<br />

Orthodontists<br />

• Prof. Carina Mehanna Zogheib / Lebanon<br />

DDS, PhD Restorative and Esthetic Dentistry, FICD<br />

Head of Restorative and Esthetic Dentistry Department, Saint-<br />

Joseph University<br />

• Dr. Nadim Abou-Jaoude / Lebanon<br />

CES, DU, FICD Prosthodontics, Lecturer, Lebanese University /<br />

Clinical Associate, American University of Beirut<br />

• Dr. Hasanen H. Al-Khafagy / UAE<br />

BDS, MSc, PhD Conservative Dentistry, Ajman University of Science<br />

& Technology<br />

• Dr. Jaser Al-Ma’itah / Jordan<br />

BDS, MSc Oral Surgery, Head of <strong>Dental</strong> Department, Jordanian<br />

Royal Medical Services<br />

• Dr. Maher Almasri / UK<br />

DDS, MSc, PhD, FADFE, Director of Oral Surgery Courses, Bone<br />

Graft Modules Leader, Warwick University / President of the Syrian<br />

Section of IADR<br />

• Dr. Abdelsalam Elaskary / Egypt<br />

BDS, FICOI, President of ASOI<br />

• Dr. Yasin El-Husban / Jordan<br />

DDS, MSc Prosthodontics, Former Minister of Health<br />

Former Head of <strong>Dental</strong> Department & King Hussein Hospital<br />

• Dr. Zbys Fedorowicz / Bahrain<br />

Director, The Bahrain Branch of the UK Cochrane Centre<br />

• Dr. Wolfgang Richter / UK<br />

DDS, PhD, Restorative Dentistry, President of ESCD<br />

• Dr. Mohammad Sartawi / Jordan<br />

BSc, BDS, MSc, FFDRCSI (OSOM)<br />

Senior Consultant Maxillo-Facial Surgery


14<br />

Implantology<br />

<strong>Dental</strong> Implants’ Homepages: Are they Educative?<br />

A Cross-Sectional Study<br />

By Layla Abdel-Aziz Abu-Naba’a<br />

Orthodontics<br />

Solving TMJ Problems with Orthodontic Treatment and Cosmetic<br />

Mouth Rehabilitation: Case Series<br />

26<br />

By Leonid Rubinov<br />

32<br />

Maxillofacial<br />

Outcomes Following Zygomatic: A Retrospective Study<br />

By Majed Hani Khreisat<br />

Multidisciplinary<br />

40 The Diagnosis and Management of Impacted Maxillary Canines<br />

By Eyas Abuhijleh, Dalal Masri, Nadia Farawana, Mariam Nmari<br />

Prosthodontics<br />

Adhesion of Candida Albicans to Denture Base and Denture<br />

Liners with Different Surface Roughness: An In-vitro Study<br />

46<br />

By Zahraa Nazar Al-Wahab<br />

Debate in Focus<br />

08<br />

54<br />

60<br />

Research<br />

Summaries in<br />

Focus<br />

Endodontic or <strong>Dental</strong><br />

Implant Therapy: The<br />

Factors Affecting Treatment<br />

Planning<br />

Effect of Teeth with<br />

Periradicular Lesions on<br />

Adjacent <strong>Dental</strong> Implants<br />

The Effects of Smoking on<br />

Fracture Healing<br />

66<br />

Ask the Experts<br />

Flash News<br />

Two Minutes with<br />

78<br />

Affiliation & Distributors<br />

• Bahrain:<br />

Bahrain <strong>Dental</strong> Society +973 17723767, bahds@batelco.com.bh<br />

• Egypt:<br />

Alexandria Oral Implantology Association +203 5451277<br />

www.aoiaegypt.com<br />

• Iran:<br />

Shayan Simin Teb Co. +98 21 66380364/5, info@shayansiminteb.com<br />

Iranian General <strong>Dental</strong> Association +98 2188287794/5, info@igda.ir<br />

• Iraq:<br />

Iraqi <strong>Dental</strong> Association +964 015379267, info@iraqidental.org<br />

Kurdistan <strong>Dental</strong> Association +964 7504510315,<br />

dara_saeed@yahoo.com<br />

Pro Health Line Company +964 7504544479, www.prohealthline.com<br />

Emirates Scientific Bureau +964 771 0131978, www.prohealthline.com<br />

• Jordan:<br />

Jordanian <strong>Dental</strong> Association (JDA) +962 6 5665520, info@jda.org.jo<br />

Basamat Medical (Pharmadent) +962 6 5605395, www.basamat.com<br />

• Kuwait:<br />

Kuwait <strong>Dental</strong> Association +965 5325094, www.kda.org.kw<br />

• Lebanon:<br />

Lebanese <strong>Dental</strong> Association +961 1 611555, www.lda.org.lb<br />

Lebanese <strong>Dental</strong> Laboratory Association (OPDL) +961 5955 151<br />

www.opdlb.com<br />

Richa <strong>Dental</strong> Store +961 5 452555, www.richadental.com<br />

• Oman:<br />

Oman <strong>Dental</strong> Society +968 95769039, omandent@omantel.net.om<br />

• Palestine:<br />

Palestinian Association of Implant Dentistry (PADI)<br />

+970 2 2954545, www.implant.ps<br />

• Qatar:<br />

Qatar <strong>Dental</strong> Society +974 4393144, www.qatardentalsociety.org<br />

Ali Bin Ali Medical The i-partner +974 4867871 ext. 247<br />

www.alibinali.com<br />

• Saudi Arabia:<br />

Saudi <strong>Dental</strong> Society +966 1 4677743, www.sds.org.sa<br />

• Sudan:<br />

Sudanese <strong>Dental</strong> Association +249 83 779769, sdaassnan@hotmail.com<br />

• Syria:<br />

Najjar Trading Est. +963 (11) 2244140, najjest@scs-net.org<br />

• United Arab Emirates:<br />

Noble Medical Equipment +971 4 3255046<br />

imad.kafity@noblemedical.ae<br />

Dubai Medical Equipment L.L.C. +971 6 554 0206<br />

www.mamut-dental.com<br />

Editorial Policy<br />

• Our objective is to publish a dental journal of consistent high quality and help to increase the exposure of literature written by dental professionals from our region at a global level.<br />

• Literature review, original research, clinical case reports, case series, short communication, randomized clinical trials, and book reviews are among our scope of published<br />

material, where the clinical aspect of dentistry is presented in a scientific way, starting each article with an abstract, backed up by references in accordance with<br />

the Vancouver citation style.<br />

• The journal encourages the submission of papers with a clinical approach, practical or management oriented, besides papers that bridge the gap between dental<br />

research and clinical application.<br />

• Received manuscripts are first revised by the editor to check if it is appropriate for publishing in <strong>Smile</strong> and that it complies with the author›s guidelines. The manuscript is<br />

then forwarded to two or more professional reviewers. Anonymity of both the author and reviewer is preserved (double blinded peer-review process).<br />

• Our editorial policy which controls the quality of articles and assures their accuracy, clarity, and smooth readability through high level enthusiast regional and<br />

international team of experts is our golden key for success.<br />

• Finally, we believe that a controlled content of advertisements could be informative and beneficial especially in dentistry, where the armamentarium and pharmaceuticals<br />

are a major and integral part of the dental science.


The <strong>Smile</strong>...<br />

Past - Present - Future<br />

If we take a look at the pathway of Dentistry over the past century, we would notice that<br />

The <strong>Smile</strong> was certainly not the primary focus of the dentist`s awareness and concern until<br />

recently. <strong>Dental</strong> Aesthetics is one of the revolutions in dentistry since World War II with the<br />

others being the technology and equipment of the 1950s, the emphasis of prevention for<br />

teeth conservation in the 1960s and lately implant dentistry in the 1980s. In fact providing<br />

aesthetic dentistry to patients became an economic necessity for dentists.<br />

In 1989, while chairing the scientific committee at the Lebanese University-School of Dentistry, we organized the 1 st<br />

meeting worldwide on “The <strong>Smile</strong>” for 2 days that included the contributions of all dental and oro-facial specialties.<br />

Our editorial at the time focused not only on the relationship between health and aesthetics but stressed on the interlink<br />

established between a society of consumption constantly influenced by the mass media, a medical industry catering for<br />

marketing, a dental profession exploring new horizons and a patient constantly seeking for beauty. Such vicious circle<br />

could expose medicine to lose its nobility and with it its true identity.<br />

Today, 22 years later, our opinion has not only not changed but all our apprehension and fear of aesthetic abuses has been<br />

justified specially when considering all the disasters resulting and/or hidden behind the so called “Hollywood <strong>Smile</strong>”.<br />

Nowadays, the smile still plays a major role in communication and is considered as one of the main tools in advertising.<br />

However, are we really attracted to teeth that are falsely so white and chalky without any natural transparency or<br />

translucency and look so fake? Are we satisfied as dentists to look at magazines covers only to find smiles that all look the<br />

same, in which one size fits everybody and encourage our patients to request <strong>copy</strong>cats because it is the smile of their idols?<br />

Are we not responsible to control and guide the mass media in educating the public and spreading the correct information<br />

rather than adverts not evidence based. Finally shouldn’t we even prepare guidelines about the Ethics of Aesthetics!<br />

With such observations, Aesthetics should be revisited and we would have to pay Mother Nature more respect. Aesthetics<br />

should be viewed in term of rejuvenation with a custom made approach and some consideration to the individual<br />

characteristics. It would have to make people look younger but not cloned to such extent that they loose their personality.<br />

The smile is part of the body and not a wear that changes with years along with fashion.<br />

According to the philosopher Kant, Beauty is defined as “What Attracts Universally and Without any Concept”.<br />

Concerning the smile, we have to go back to our basics:<br />

1. The color is not the only variable in tooth aesthetics, we have to consider position, volume, texture... It is Microaesthetics<br />

2. The tooth is only one variable in the smile components that include the periodontium, lips, smile reveal... It is Macroaesthetics<br />

3. The smile is part of the Facial Harmony that involves the eyes, nose, and chin<br />

The ideal smile team would include an Orthodontist, a Periodontist and a Prosthodontist or a General Dentist in order to<br />

have a multi disciplinary approach and take the best from every specialty. A Maxillo–Facial Surgeon could be consulted in<br />

certain conditions.<br />

Taking all these data into consideration, we have to admit that the time factor plays a major role when a multidisciplinary<br />

approach is indicated for a long lasting result. This time, essential for therapy, that the patient wants to be always shorter<br />

and faster, becomes in fact the only judge for success.<br />

Finally, communication is an issue that we should not overlook if we want to meet our patients’ expectations. Since they<br />

usually pay up front for a series of procedures with an outcome they envision quite differently than we do.<br />

In such circumstances we might fall into Charles Revlon thought:<br />

“In the Factory we Make Cosmetics and in the Store we Sell… Hope”<br />

Prof. Jean-Marie Megarbane DCD, CAGS, FAIDS, FICD<br />

Masters <strong>Dental</strong> Clinic, Beirut-Lebanon<br />

info@mastersdentalclinic.com<br />

www.mastersdentalclinic.com<br />

| 4 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 34 - 2011


International Events<br />

6 - 8 February<br />

14 th King Saud University &<br />

23 rd Saudi <strong>Dental</strong> Society<br />

International <strong>Dental</strong><br />

Conference<br />

Riyadh, KSA<br />

www.sds.org.sa<br />

12 - 15 March<br />

3 rd International Conference<br />

of King Abdulaziz University<br />

Jeddah, KSA<br />

www.kau.edu.sa<br />

30 - 31 March<br />

2 nd Iraqi <strong>Dental</strong> Reunion IDR Annual<br />

Conference 2012<br />

Erbil, Iraq<br />

www.cappmea.com/idr2012<br />

3 - 4 May<br />

6<br />

th CAD/CAM &<br />

Computerized Dentistry<br />

International Conference<br />

Dubai, UAE<br />

www.cappmea.com/<br />

cadcam6<br />

3 - 5 February<br />

1 st Annual Conference of The Arabian<br />

Academy of Esthetic Dentistry<br />

Cairo, Egypt<br />

www.araed-org.com<br />

26 - 28 April<br />

Sky Meeting 2012 (AOIA)<br />

Alexandria, Egypt<br />

www.aoiaegypt.com<br />

12 - 13 April<br />

8 th Gulf <strong>Dental</strong> Association<br />

Conference & 2 nd Qatar<br />

Internationl <strong>Dental</strong><br />

Association Conference<br />

Doha, Qatar<br />

17 - 19 May<br />

7 th Lebanese <strong>Dental</strong><br />

Laboratory Seminar<br />

(LDLS)<br />

Beirut, Lebanon<br />

www.opdlb.org<br />

25 - 26 May<br />

Tarnow Alumni & Friends<br />

Venice, Italy<br />

www.tarnowalumni.com<br />

For more dental events please visit www.smiledentaljournal.com or our page on Facebook<br />

<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011| 5 |


<strong>Smile</strong> Message<br />

1 st <strong>Smile</strong> <strong>Dental</strong> Symposium; the First Step in Long Term<br />

Evidence Based <strong>Dental</strong> Program<br />

Dentistry is a continually developing science. Over the past 20 years or so there have<br />

been changes of opinion and practice: some techniques and opinions previously<br />

advocated are not so today; controversies and conflicts surrounding the practice of dentistry have arisen; and a full<br />

circle of opinions have been travelled by dentists over a period of time.<br />

<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> was proud to launch its <strong>Smile</strong> <strong>Dental</strong> Symposia with the theme of “<strong>Dental</strong> Implants: Is Quicker<br />

Always Better?”. The 1 st <strong>Smile</strong> <strong>Dental</strong> Symposium aimed to look into one of the interesting branches of dentistry; <strong>Dental</strong><br />

Implantology. The science of dental implantology is not only regarded as one of the major innovations in dentistry, but<br />

also has come a long way in a relatively short period of time.<br />

The one-day event featured a high-quality scientific program along with an up to date and advanced dental show.<br />

The majority of the delegates agreed that this symposium had provided them with evidence based and clinical tips<br />

which they can apply in their day to day dental implant practice.<br />

The symposium social event – “<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> 5 th Anniversary Gala dinner” – took place at the glamorous<br />

five star Land Mark hotel in Amman, under the patronage of the president of the Jordan <strong>Dental</strong> Association; Dr.<br />

Qadoomi. The symposium was organized in co-operation with the Scientific Committee in the Jordan <strong>Dental</strong><br />

Association and was also well supported by the dental and local private companies who have sponsored the prizes<br />

for the quiz show during the Gala dinner.<br />

This successful symposium was not the end. It is not even the beginning of the end. But it is, perhaps, the end of<br />

the beginning, as we promise the dental community in the Middle East more of these advanced and well structured<br />

dental symposia covering different dental specialties in various countries, aiming to bridge the gap between evidence<br />

based and clinical practice in the whole area.<br />

For the full symposium report and photos, please refer to the Event section.<br />

Behind the scenes we are very fortunate to have a small and dedicated team who work hard to ensure the <strong>Smile</strong><br />

<strong>Dental</strong> <strong>Journal</strong> functions smoothly. Thank you to all the directors, Dr. Mamoon Salhab Tamimi, Dr. Issa Bader and<br />

Miss. Solange Sfeir.<br />

Finally, I would like to thank all <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> reviewers, the international advisory board and our beloved<br />

readers for their support and encouragement over the last year.<br />

New Authors Guidelines are Well Received<br />

Since we have updated our authors’ guidelines for submitting manuscripts to <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> to meet the<br />

international requirements for reporting on health research are continuously evolving, we have started to receive a<br />

better quality articles from authors all around the world. We made it clear that the key point is to focus on quality<br />

rather than quantity, and I think that we are on the right track.<br />

Even better, I am now delighted to announce that we are now been recognized by a number of high standards<br />

dental schools as one of the esteemed indexed journals where staff and students can publish their studies and reports<br />

as a mean for granting promotion. If anything, this recognition is a great proof that in a short time, <strong>Smile</strong> <strong>Dental</strong><br />

<strong>Journal</strong> has managed to prove that we are a peer reviewed, evidence based dental journal which aims to improve<br />

the quality of dental care provided to dental patient in this area.<br />

While we promise to continue this thousand mile journey, we urge our readers to support us by continuing to submit<br />

high quality dental articles which are of interest to practitioners in all areas of dental practice, including general<br />

practice, community and hospital dentistry, the armed forces, corporate bodies.<br />

Dr. Hassan Maghaireh<br />

Editorial Director<br />

<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong><br />

| 6 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 14 - 2011


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Neutral Zone in Complete Dentures:<br />

Systematic Analysis of Evidence and Technique<br />

• Ahmad A. Jum’ah, BDS(Hons), MSc/PhD (Clin) Student-Second year<br />

Restorative Dentistry Department, Leeds <strong>Dental</strong> Institute, University of Leeds, UK<br />

dnaahj@leeds.ac.uk<br />

• Peter J. Nixon, Senior Consultant in Restorative Dentistry, Leeds <strong>Dental</strong> Hospital,<br />

Leeds Teaching Hospitals Trust (LTHT), England, UK<br />

Abstract<br />

Neutral zone technique is a physiologic and functional approach that is widely and concisely described as a treatment<br />

modality for unstable lower complete denture cases. It serves as a guide of where to set teeth and how to contour the<br />

polished surface of the denture to ensure optimal stability, retention, facial support and aesthetics. In patients with<br />

compromised support and poor denture adaptability, this technique is considered as a valuable tool in the prosthodontist’s<br />

armoury especially where dental implants are contraindicated or unfeasible. The aim of this article is to describe the concept<br />

and technique of neutral zone, discuss rationale, indications and to evaluate this technique from evidence-based perspective.<br />

Abbreviations: NZ: Neutral zone, CD: complete denture, VDO: Vertical dimension at occlusion.<br />

Introduction<br />

Stability of lower CDs is well recognized as a potentially<br />

difficult treatment aim to achieve. Looseness and discomfort<br />

are the most frequent complaints reported by patients and<br />

they are quite often difficult to manage by dentists.<br />

Neuromuscular control is said to be the key determinant<br />

of stability of lower CD as the area available for support is<br />

far less than maxillary support area. Size and position of<br />

prosthetic teeth and the contours of polished surface have<br />

a crucial role in lower CD stability as they are subjected to<br />

destabilizing forces from the tongue, lips and cheeks if they<br />

are placed in hindrance with function of these structures. 1<br />

Throughout time, many concepts and theories emerged<br />

to describe where prosthetic teeth of CD should<br />

be positioned. Some of them adopted mechanical<br />

principles, 2,3 others used biometric guides 4 and a minority<br />

advocated mathematical formulas based on natural teeth<br />

position and dimensions. 5 These dogmatic or arbitrary<br />

approaches have been challenged and found insufficient,<br />

in fact not only by rigorous research, but also by failure<br />

to restore function, aesthetic and comfort in patients with<br />

severely atrophic mandibular ridges (Class V Atwood’s 6 ),<br />

patients with enlarged tongue and cases of marginal or<br />

segmental mandibulectomy. To overcome such problem,<br />

the neutral zone technique was advocated.<br />

The neutral zone, zone of minimal conflict, 7 zone of<br />

equilibrium, 8 potential denture space 9 and the dead<br />

space 10 are all terms used to describe the potential area<br />

where forces generated in an outward direction from the<br />

tongue are being neutralized or balanced by the inward<br />

forces generated by lips and cheeks during functional<br />

activities. Setting teeth and contouring polished surface<br />

of lower CD within this zone, makes the prosthesis less<br />

subjected to dislodging forces and adds more to stability. 11<br />

Analysis of functional forces<br />

Understanding the unique and synergistic interplay<br />

and complex movements of muscles of cheeks, lips<br />

and tongue is the first step in construction of lower<br />

CD that is stabilized rather than being dislodged by<br />

movements of these structures. 11,12 Description of forces<br />

applied to the lower CD purely on the basis of direction<br />

is an oversimplification, yet, it is quite useful for better<br />

understanding of the concept. 12<br />

The outward forces are principally generated by the<br />

tongue and lingual frenum into which, genioglossus<br />

muscle is inserted. Teeth should be set and flanges should<br />

be contoured in harmony with tongue size, position and<br />

shape during rest and function. In rest position, the tongue<br />

rests on lingual cusps of posterior teeth and lingual<br />

flanges posteriorly and anteriorly. The tongue space<br />

determined by position of teeth is far more important<br />

during function. Setting teeth too lingualy will encroach<br />

on this space and the tongue tends to dislodge denture<br />

in function. The height of posterior teeth is of a great<br />

importance in stability of lower CD as well. Having the<br />

tongue resting on lingual cusps will reduce the horizontal<br />

(outward) force and apply force with vertical (downward)<br />

component which enhances stability and retention. 11<br />

Inward forces are generated by cheeks resulting from<br />

contraction of the buccinator muscle that pushes food<br />

bullous on top of occlusal surfaces of posterior teeth.<br />

Flanges contoured and teeth set too buccal are at<br />

increased risk of being dislodged by the action of this<br />

muscle. Anteriorly, lip muscles (mentalis and orbicularis<br />

oris) are the source of inward forces generated during<br />

speaking and swallowing. Contraction of these muscles<br />

to attain seal during these activities can destabilize lower<br />

CD with teeth and flanges placed too far labially. The<br />

modiolus is a knot-like structure found in corners of the<br />

| 8 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011


mouth where several muscles are inserted. Movement of<br />

this structure narrows the space available for flanges and<br />

teeth. The modiolus produces quite strong inward forces<br />

in premolar region. Thus, contouring flanges in harmony<br />

with its’ functional movement is essential. 11,12<br />

Rationale<br />

The rationale of using neutral zone technique is to<br />

fabricate a lower CD that is optimally situated and in<br />

harmony with the structures and forces discussed above.<br />

By doing so, these forces are more likely to be stabilizing<br />

rather than unseating. 11 The need for such a technique<br />

that is based on physiologic concepts is significantly<br />

increasing as emergence of several factors (discussed<br />

below) render a high proportion of conventionally made<br />

lower CDs unsatisfactory.<br />

Increased access to dental care has led to patients losing<br />

their teeth at a later stage of life. 13 Compounded by<br />

increased life expectancy, this has led to the majority<br />

of CD wearers to be elderly and has increased the<br />

proportion of those who have poor neuromuscular<br />

control, poor adaptive capacity, severely atrophic<br />

ridges 14 and atypical denture support area as a result<br />

of surgical interventions, poor planning for transition<br />

from partially dentate to edentulous state, 15 untreated<br />

edentulism for long period of time ,16,17 trauma or<br />

systemic diseases. Occasionally, patients with one or<br />

a combination of these conditions can be successfully<br />

treated by CD constructed by conventional techniques. 11<br />

Indications<br />

• In general, neutral zone technique is indicated when<br />

stability and patient’s acceptance of lower CD are in<br />

question. Searching the literature, this technique is<br />

found to be used in the following clinical situations:<br />

• Severely atrophic mandibular ridge 12,13,18-22 (Atwood’s V).<br />

• Patients with prominent and highly attached mentalis<br />

muscle, lateral spreading of tongue as a result of poor<br />

transition from dentate to edentulous state and severe<br />

resorption. 13<br />

• Patients with diminished neuromuscular control such as<br />

those with a history of stroke, 13 Parkinson’s disease 13,23<br />

or patients with impaired motor innervation to oral and<br />

facial muscles as a result of brain surgery. 18<br />

• Patients with atypical shape or consistency of oral<br />

and perioral structures. For example, patients who<br />

have scleroderma, 13 marginal 21,24 or segmental 25,26<br />

mandibulectomy and partial glossectomy. 27<br />

• NZ technique can be used to locate optimal position<br />

for implants in cases of implant-supported or -retained<br />

overdentures, which enhances the overall outcome of<br />

treatment. 28<br />

Clinical technique<br />

Primary and secondary impressions are taken for<br />

maxillary and mandibular denture bearing areas as in<br />

standard complete denture treatment. Bite registration<br />

is then performed as in conventional treatment. Master<br />

casts with record blocks should be mounted on an<br />

articulator. In the lab, the lower occlusal rim is removed<br />

from baseplate and substituted with a baseplate with<br />

acrylic pillars 29 in the premolar regions and/or wire<br />

loops 13 on the remaining areas of the baseplate. The<br />

pillars preserve the VDO recorded in bite registration<br />

stage. It is essential the the pillars are relatively thin<br />

bucco-lingually and are positioned directly over the<br />

ridge. The base plate is then fitted in the patient’s mouth<br />

and VDO and extensions are checked. Then impression<br />

material such as compound 11 , plaster 22 , wax 30 , silicone 31 ,<br />

polyether 32 or tissue conditioner 13,33 is applied to the<br />

baseplate and retained by the wire loops and/or acrylic<br />

pillars. Before setting of material, patient is asked to<br />

perform functional movement such as, licking lips,<br />

swallowing, pronouncing some words or combination<br />

of these. Care should be taken that the patient should<br />

continue performing functional movements until the full<br />

setting of material; otherwise material might flow back<br />

and give inaccurate recording of the neutral zone. It is<br />

useful if the chosen material has relatively long working<br />

time to allow the required movements to be carried out<br />

before the material becomes rigid. Also, it is worthwhile<br />

to mention that it is better to perform the NZ record<br />

while the upper occlusal rim or finished denture is fitted<br />

in the patient mouth as it may help to control recording<br />

material and prevent it from being displaced in a labioocclusal<br />

direction. 29<br />

In the lab, the baseplate carrying recording material is<br />

fitted on the master cast again and VDO is checked. A<br />

putty or plaster index is made around the NZ record.<br />

Placement of three orientation grooves is recommended<br />

as these help in repositioning the index on the master cast.<br />

Impression material is then removed and replaced<br />

by wax; the use of the index will make sure that wax<br />

replicates the neutral zone record. Subsequently, teeth<br />

should be set and flanges contoured according to the<br />

index that represents NZ.<br />

NZ impression technique has various modifications, not<br />

only in terms of materials used or retention provided by<br />

baseplate, but also in terms of the functional movements<br />

performed and refinement of the procedure. A further<br />

more defined NZ record can also be achieved in try-in<br />

stage. The wax below the teeth and covering the flanges<br />

can be cut back and tissue conditioning material or<br />

medium-bodied silicone applied. The patient is asked<br />

again to perform functional movements. The dentures<br />

are processed as usual. The same procedure has also<br />

(Table 1) Materials Used for NZ Impression<br />

Impression plaster<br />

Impression waxes<br />

Impression compound<br />

Regular bodied silicone<br />

Tissue conditioner<br />

Polyether<br />

Hard relining material<br />

<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011| 9 |


(Table 2) Summary of clinical and laboratory stages of NZ<br />

technique<br />

Clinic 1: Upper & lower primary impressions using stock trays<br />

Lab1: Casting primary models and construction of special trays<br />

Clinic 2: Upper & lower secondary impressions<br />

Lab 2: Casting master models and construction of record blocks<br />

Clinic 3: Bite registration<br />

Lab 3: Mounting master casts using CR record on semi-adjustable<br />

or average value articulator. Removal of lower wax rim and fabrication<br />

of baseplate for NZ impression<br />

Clinic 4: NZ impression<br />

Lab 4: NZ impression record mounted on lower master cast, orientation<br />

grooves placed on master cast, putty index adapted around<br />

NZ record and impression material removed and poured in wax<br />

Finally, setting of teeth completed<br />

Clinic 5: Try-in stage. Afterwards, NZ impression refined by tissue<br />

conditioner applied to lower try-in denture<br />

Lab 5: Processing, finishing and polishing<br />

Clinic 6: Insertion of finished dentures<br />

been described after insertion of the denture but using<br />

hard relining material. 27,31<br />

Discussion<br />

Many approaches to set teeth have been advocated and<br />

used in complete denture treatment. 20 However, there<br />

is substantial debate on which of these provide optimal<br />

position in the facio-lingual dimension and guarantee a<br />

favourable outcome in terms of stability, facial support,<br />

chewing efficiency, aesthetics and patient comfort. Some<br />

of these approaches utilized biometric measurements and<br />

location of relatively stable anatomical landmarks to set<br />

teeth; 4 others relied on difference in resorption patterns<br />

to set denture teeth where their natural predecessors<br />

were thought to have been. 34 Some authors adopted a<br />

mechanical concept and advocated setting teeth directly in<br />

the centre of denture support area where the least amount<br />

of leverage is present which in turn enhances the stability<br />

of lower CD. 35 All of these approaches were and are still<br />

being used and each of them proved to have advantages<br />

and disadvantages when compared to others. Furthermore,<br />

these approaches seem to work best when used with<br />

patients who have; their oral and peri-oral musculature<br />

unaltered for any reason, adequate neuromuscular control<br />

and acceptable amount of residual ridge for support.<br />

Unfortunately, the proportion of patients with these features<br />

is dramatically decreasing and so the NZ concept has<br />

become increasingly significant. These observations are<br />

strongly supported by studies investigating the effect of<br />

period of edentulism on position of neutral zone. It has<br />

been found that NZ is closely related to the crest of residual<br />

(Fig. 1) NZ baseplate with<br />

acrylic pillars and wire loop<br />

(Fig. 2) A: NZ impression taken with silicon. B: Putty index<br />

adapted around master cast<br />

ridge in patients who have been edentulous for less than<br />

two years and significantly differs in those who were<br />

edentulous for a period more than that. 16,17<br />

Realizing the importance of the forces generated<br />

by various oral structures on the teeth and polished<br />

surfaces of CDs and their effect on the stability of CD<br />

sheds light on the NZ technique. 1,10 It has been shown<br />

that compromised retention, poor stability, phonetic<br />

problems, inadequate facial support, inefficient<br />

tongue posture/function and increased gagging are<br />

all associated with functionally inappropriate setting of<br />

denture teeth and physiologically inadequate contours<br />

or volume of the denture base. 20<br />

NZ technique has been criticized based on claims that<br />

it is supported by empirical evidence. However, other<br />

authors maintain that this is inaccurate as NZ technique<br />

is based on significant clinical observations on the role<br />

of destabilizing forces the muscles apply to CDs during<br />

functional movements. Furthermore, the large number of<br />

case reports accumulated in a short period of time and<br />

clinical studies conducted by Stromberg & Hickey 36 and<br />

Fahmy & Kharat 37 undermine this criticism and add to<br />

the validity of NZ technique. Stromberg & Hickey 36 found<br />

better patient adaptability to physiologically formed<br />

denture bases when compared to conventional ones.<br />

Fahmy & Kharat 37 found improved comfort and speech<br />

clarity reported by patients upon wearing CD fabricated<br />

using NZ technique when compared to conventional<br />

CD. Moreover, Barrenas and Odman found less post<br />

insertion problems and better patient acceptance in<br />

NZ dentures when compared to conventional ones. 38<br />

(Table 3) Summary of NZ impression clinical technique<br />

Baseplate with acrylic pillars and/or wire loop is fitted in patient’s<br />

mouth and checked for proper extensions and VDO<br />

Baseplate is coated by adhesive and loaded with regular bodied<br />

silicone impression material<br />

While the patient is setting upright and comfortable the baseplate is<br />

inserted in patient’s mouth<br />

Patient is then asked to swallow few time, moisten lips, use tongue to<br />

clear buccal sulci, smile, grin and purse lips<br />

Before final setting of material, patient is asked to read loudly a<br />

vocal passage<br />

Once set, NZ impression removed and inspected for deficiencies<br />

which can be corrected by addition of impression material<br />

Impression disinfected and sent to lab<br />

| 10 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011


(Fig. 3) Setting of teeth according to NZ record. Note the class II<br />

arrangement of teeth<br />

Recently, Raja and Saleem 19 published results of clinical<br />

trial in which they compared patient acceptance of NZ<br />

dentures and conventional dentures in 128 patients. The<br />

authors concluded that there is no significant difference<br />

in terms of patient’s acceptance between the two groups<br />

as far as patients who have been edentulous for less<br />

than two years are concerned. However, in patients who<br />

have been edentulous for more than two years, better<br />

results and patient acceptance were reported with NZ<br />

dentures. Unfortunately, the aforementioned studies can<br />

be criticized in terms of design or information about<br />

blinding and randomization which affects the quality of<br />

evidence taken from these studies.<br />

The principle of the NZ concept has remained the<br />

same since it has been first described by Beresin and<br />

Schiesser. However, the technique has been subjected to<br />

various modifications. Type of retention incorporated in<br />

the baseplate (acrylic pillars or wire loops 13 ), recording<br />

materials used and further refinement to the initial<br />

record are among the variations between clinicians.<br />

The authors’ preference is to use combination of thin<br />

acrylic pillars in premolar region connected by a wire<br />

loop which maintains the VDO and provides maximum<br />

retention at the same time. Medium or regular bodied<br />

silicone impression material used along with adhesive<br />

for the initial record that is refined in the try-in stage by<br />

tissue conditioning material is the personal preference of<br />

the authors for purposes of NZ recording.<br />

(Fig. 4) Refined NZ record using tissue conditioner on try-in denture<br />

The effect of various functional movements patients<br />

perform during recording NZ on the location and<br />

dimensions of NZ has been investigated by Makzoumi 39 .<br />

This investigation concluded that NZ recorded whilst<br />

patients perform a phonetic exercise is significantly<br />

narrower when compared with a NZ record produced<br />

during swallowing. This finding may be of a clinical<br />

significance from two perspectives; first, the author used<br />

modelling compound for the swallowing and used tissue<br />

conditioner for phonetic technique which may indicate<br />

that one of these materials is less reliable than the other<br />

in recording NZ. Second, dentures fabricated utilizing<br />

one functional exercise to shape the NZ may be unstable<br />

during other functions. The authors’ preference is to as<br />

patients to perform multiple tasks including swallowing,<br />

using the tongue to moisten lips and finishing with<br />

reading a speech articulation passage loudly.<br />

From biomechanical perspective, NZ technique has<br />

one disadvantage as teeth may be set far from the<br />

denture support area. For example, in a case of<br />

excessive resorption of the anterior area of the mandible<br />

accompanied by prominent and highly attached mentalis<br />

muscle, this will shift the NZ more lingually away from<br />

the crest of the ridge. This horizontal discrepancy can<br />

increase the leverage forces on the denture and may<br />

destabilize it. 21 However, there is an agreement that<br />

these leverage forces are well counterbalanced by<br />

favourable and seating forces resulting from optimal<br />

placement of teeth and polished surfaces of denture<br />

being in harmony with the tongue, lips and cheeks. 1,11,40<br />

Conclusion<br />

NZ concept is considered as exceptionally important<br />

when considering treatment options for patients<br />

complaining from unstable lower CD particularly<br />

if implant treatment is not feasible. It aims to place<br />

lower CD where forces generated by lips, cheeks and<br />

tongue have a stabilizing rather than dislodging effect.<br />

The principle technique used to record neutral zone<br />

is extensively recorded; yet it needs to be backed up<br />

with high quality clinical trials to push it further up on<br />

the hierarchy of evidence. It is not a widely practiced<br />

procedure while the proportion of patients that may<br />

befit from is significant. This may be attributed to a lack<br />

of experience and exposure to this technique during<br />

undergraduate training and the associated increase in<br />

chair time and laboratory costs.<br />

Acknowledgement<br />

The authors would like to acknowledge with gratitude Dr.<br />

Brian Nattress for his continuous support and cheif dental<br />

technician, Carol Scholfield, for the skilled lab work.<br />

References<br />

1. Fish E. Principles of Full Denture Prosthesis. 7 th Ed. London: Staple<br />

Press,Ltd;1948.<br />

2. Wright Cr, Swartz Wh, Godwin Wc. Mandibular Denture Stability: A New<br />

Concept. Overbeck;1961.<br />

3. Lammie G. Aging Changes and the Complete Lower Denture. J Prosthet<br />

Dent. 1956;6:450-64.<br />

<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011| 11 |


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Stand No. 18<br />

4. Pound E. Esthetic Dentures and Their Phonetic Values. J Prosthet Dent.<br />

1951;1:98-111.<br />

5. El-Gheriani As. A New Guide for Positioning of Maxillary Posterior Denture<br />

Teeth. <strong>Journal</strong> of Oral Rehabilitation. 1992;19(5):535-8.<br />

6. Atwood Da. Postextraction Changes in the Adult Mandible as Illustrated<br />

by Microradiographs of Midsagittal Sections and Serial Cephalometric<br />

Roentgenograms. The <strong>Journal</strong> of Prosthetic Dentistry. 1963/10//;13(5):810-24.<br />

7. Matthews E. Br Dent J. 1961;111(The Polished Surfaces) :407-11.<br />

8. Grant Aa, Johnson W. An Introduction to Removable Denture Prosthetics. C.<br />

Livingstone; 1983.<br />

9. Roberts A. The Effects of Outline and Form Upon Denture Stability And<br />

Retention. Dent Clin North Am. 1960;4:293-303.<br />

10. Fish E. Using The Muscles To Stabilize The Full Lower Denture. J Am Dent<br />

Assoc. 1933;20:2163-9.<br />

11. Beresin Ve, Schiesser Fj. The Neutral Zone in Complete Dentures. The <strong>Journal</strong><br />

of Prosthetic Dentistry. 1976;36(4):356-67.<br />

12. Gahan Mj, Walmsley Ad. The Neutral Zone Impression Revisited. Br Dent J.<br />

2005;198(5):269-72.<br />

13. C.D Lynch Pfa. Overcoming the Unstable Mandibular Complete Denture: The<br />

Neutral Zone Impression Technique. <strong>Dental</strong> Update. 2006;33:21-6.<br />

14. Miller Wp, Monteith B, Heath Mr. The Effect of Variation of The Lingual Shape<br />

of Mandibular Complete Dentures on Lingual Resistance to Lifting Forces.<br />

Gerodontology. 1998;15(2):113-9.<br />

15. Allen Pf, Wilson Nhf. Teeth for Life for Older Adults. Quintessence;2002.<br />

16. F.M F. The Position of the Neutral Zone in Relation to the Alveolar Ridge. The<br />

<strong>Journal</strong> of Prosthetic Dentistry. 1992;67(6):805-9.<br />

17. Raja Hz Sm. Relationship of Neutral Zone and Alveolar Ridge with Edentulous<br />

Period. J Coll Physicians Surg Pak. 2010;20(6):395-9.<br />

18. Memarian Lsfgsfam. Using Neutral Zone Concept in Prosthodontic Treatment<br />

of a Patient with Brain Surgery: A Clinical Report <strong>Journal</strong> of Prosthodontic<br />

Research. 2011;55(2):117-20.<br />

19. Hina Z. Raja Mns. Neutral Zone Dentures Versus Conventional Dentures in<br />

Diverse Edentulous Periods Biomedic. 2009;25:136-45.<br />

20. Cagna Dr, Massad Jj, Schiesser Fj. The Neutral Zone Revisited: From<br />

Historical Concepts to Modern Application. The <strong>Journal</strong> of Prosthetic Dentistry.<br />

2009;101(6):405-12.<br />

21. Wee Ag, Cwynar Rb, Cheng Ac. Utilization Of The Neutral Zone Technique<br />

For A Maxillofacial Patient. <strong>Journal</strong> of Prosthodontics. 2000;9(1):2-7.<br />

22. Johnson A Ns. The Unstable Lower Full Denture-A Practical and Simple<br />

Solution. Restor Dent. 1989;5:82-90.<br />

23. Makzoume J. Complete Denture Prosthodontics for a Patient with Parkinson’s<br />

Disease Using the Neutral Zone Concept: A Clinical Report. Gen Dent.<br />

2008;56(4):E12-6.<br />

24. G. P, C., Hekimoglu, N., Sahin. Rehabilitation of a Marginal Mandibulectomy<br />

Patient Using a Modified Neutral Zone Technique: A Case Report. Braz Dent J.<br />

2007;18(1):83-6.<br />

25. Pravinkumar G. P. Conventional Complete Denture for a Left Segmental<br />

Mandibulectomy Patient: A Clinical Report. <strong>Journal</strong> of Prosthodontic Research.<br />

2010;54(4):192-7.<br />

26. Kokubo Y, Fukushima S, Sato J, Seto K. Arrangement of Artificial Teeth in the<br />

Neutral Zone after Surgical Reconstruction of the Mandible: A Clinical Report.<br />

The <strong>Journal</strong> of Prosthetic Dentistry. 2002;88(2):125-7.<br />

27. Ohkubo C, Hanatani S, Hosoi T, Mizuno Y. Neutral Zone Approach for<br />

Denture Fabrication for a Partial Glossectomy Patient: A Clinical Report. The<br />

<strong>Journal</strong> of Prosthetic Dentistry. 2000;84(4):390-3.<br />

28. Yasunori Suzuki Coath. Implant Placement for Mandibular Overdentures<br />

Using the Neutral Zone Concept. Prosthodont Res Pract. 2006;5:109-12.<br />

29. Basker Rm, Davenport Jc, Thomason Jm. Prosthetic Treatment of the Edentulous<br />

Patient. John Wiley & Sons; 2011.<br />

30. Lott F, Levin B. Flange Technique: An Anatomic and Physiologic Approach to<br />

Increased Retention, Function, Comfort, and Appearance of Dentures. The<br />

<strong>Journal</strong> of Prosthetic Dentistry. 1966/6//;16(3):394-413.<br />

31. Mccord Jf, Grant Aa. Prosthetics: Impression Making. Br Dent J. [10.1038/<br />

Sj.Bdj.4800516]. 2000;188(9):484-92.<br />

32. Agarwal S, Gangadhar P, Ahmad N, Bhardwaj A. A Simplified Approach<br />

for Recording Neutral Zone. The <strong>Journal</strong> of Indian Prosthodontic Society.<br />

2010;10(2):102-4.<br />

33. P. K, N., Ari, S., Calikkocaoglu. Using Tissue Conditioner Material in Neutral<br />

Zone Technique. N Y State Dent J. 2007;73(1):40-2.<br />

34. David M W. Tooth Positions on Complete Dentures. <strong>Journal</strong> of Dentistry.<br />

1978;6(2):147-60.<br />

35. Sharry Jj. Complete Denture Prosthodontics. Mcgraw-Hill; 1974.<br />

36. Stromberg Wr, Hickey Jc. Comparison of Physiologically and Manually<br />

Formed Denture Bases. The <strong>Journal</strong> Of Prosthetic Dentistry.15(2):213-26.<br />

37. Fahmy Fm, Kharat Du. A Study of the Importance of the Neutral Zone in<br />

Complete Dentures. The <strong>Journal</strong> of Prosthetic Dentistry. 1990;64(4):459-62.<br />

38. Barrenäs L, Ödman P. Myodynamic and Conventional Construction of<br />

Complete Dentures: A Comparative Study of Comfort and Function. <strong>Journal</strong><br />

of Oral Rehabilitation. 1989;16(5):457-65.<br />

39. Makzoume Je. Morphologic Comparison of Two Neutral Zone Impression<br />

Techniques: A Pilot Study. The <strong>Journal</strong> of Prosthetic Dentistry. 2004;92(6):563-8.<br />

40. Gt. Mcdonald H, Larsen. The Neutral Zone Space: A Clue to Denture Stability.<br />

Gen Dent. 1984;32(6):510-1.<br />

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| 12 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011


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<strong>Dental</strong> Implants’ Homepages:<br />

Are they Educative?<br />

A Cross-Sectional Study<br />

Layla Abdel-Aziz Abu-Naba’a<br />

BDS, PhD, MFDRCS<br />

• Department of Substitutive<br />

oral sciences, college of<br />

dentistry, Taibah University,<br />

AlMadinah AlMonawwarah<br />

KSA<br />

• Formerly Prosthodontic<br />

Department, Jordan<br />

University of Science and<br />

Technology, Jordan<br />

laylanabaa@hotmail.com<br />

Abstract<br />

<strong>Dental</strong> implant manufacturers’ web pages are presenting more links to educative<br />

material targeting students, dental practitioners, technicians, and patients.<br />

Aim: This cross-sectional study aims to describe the amount of links to educational and<br />

scientific material in comparison with links to information, support services and other<br />

web-based material using a standardized methodology.<br />

Material and methods: A convenient sample of dental manufacturers’ web pages<br />

was chosen. The ADA lists 39 companies in its dental buying guide “ IMPLANTS AND<br />

ACCESSORIES CATEGORY “ in 2010. Icons present in the companies web pages are active<br />

links, which linked the surfer to other web pages. The subsequent webpage was categorized<br />

according to the material presented in it as: Educational and scientific materials,<br />

Information materials, Services and support materials. Target audiences were described.<br />

Results: This study shows that homepages focus on being directories, containing<br />

variable numbers of clickable icons. Clicking them lead the reader to other web pages,<br />

either containing the actual material of interest, or containing another directory of more<br />

clickable icons. Types of material presented by the clickable icons on the homepages<br />

of the sample, included a sum of 93 informative, 64 service related or supportive<br />

and 85 lead to material described as educational. Three homepages represented a<br />

comprehensive directory by including icons leading to all three materials’ categories(one<br />

included a sum of 78 links, the second included 57 and the final had 42 links).<br />

Conclusions: Within the limit of this cross sectional study, it is concluded that<br />

educational material is considered as a major category of material presented by the<br />

homepages of dental implant manufacturers.<br />

Keywords: <strong>Dental</strong> Implants, Education, e-resources, Cross-sectional study, Internet.<br />

Introduction<br />

Internet became a preferred tool for enquiries, information gathering and<br />

communications for many. Clinical skills of health professionals were enhanced by this<br />

new learning behavior that evolved with the expanding use of the net. It helped surfers<br />

to answer patient related questions, pharmaceutical inquiries, and update and follow<br />

clinical developments. 1<br />

However, many experts involved in critical appraisals of internet-disseminated<br />

materials, advocated professionals to perform informed searches and rely on evidence<br />

derived from good research. 2 They disseminated this message by spreading the word<br />

through the internet!<br />

<strong>Dental</strong> bodies also promote evidence-based dentistry and set guides for the learners<br />

on how to judge the hierarchy of evidence. More and more educative material are<br />

distributed by the internet as an instructional method, which proved better than traditional<br />

methods. 3 Now it is accepted to accumulate independent-study points from internet-<br />

| 14 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011


ADA.org: <strong>Dental</strong> Buying Guide<br />

Page 1 of 2<br />

based courses, as for continuation of dental practice<br />

licensure. 4 Teledentistry, dental informatics and dental<br />

portals, are subject which have developed into mature<br />

branches of specialty, revolving around the internet<br />

technology and the delivery of reliable knowledge. 5-8<br />

Implant manufacturers developed their web pages,<br />

accordingly, to become more educative. An increasing<br />

number of homepages contain dedicated sections for<br />

evidence and continual education. Some manufacturers<br />

began investing in educational institutions which<br />

prioritize research. Others have devoted funds, advisors<br />

and publications which would help perform and later,<br />

disseminate results of studies using their implant systems.<br />

Educative material is presented to target a larger audience<br />

of implant service receivers, providers and distributers.<br />

Aim<br />

This cross sectional study aims to develop a standardized<br />

methodology to describe webpage contents in <strong>Dental</strong><br />

Implant manufacturers’ webpages. Links present were<br />

to be categorized to educational (scientific material) in<br />

comparison with links to information, support services<br />

and other web-based material present in. Then a<br />

comparison of a sample of homepages for 12 valid<br />

and current implant manufacturers was done using this<br />

standardized methodology.<br />

Materials and Methods<br />

Bicon Definitions <strong>Dental</strong> Implants<br />

Selection of manufacturers’ homepages<br />

A valid and current manufacturer means; that the<br />

company is consistent in its ownership, still managing<br />

ADA LIBRARY<br />

ADA PUBLICATIONS<br />

About ADA Publishing<br />

ADA News Today<br />

Advertise in<br />

ADA Publications<br />

Advocacy Publications<br />

Buying Guide<br />

Classifieds<br />

E-Publications/E-mail<br />

<strong>Journal</strong> of the ADA<br />

Subscribe<br />

Professional Product<br />

Review<br />

DENTAL CAREERS AND<br />

JOB LISTINGS<br />

EVIDENCE BASED<br />

DENTISTRY<br />

PODCASTS<br />

ADA POLICIES & POSITIONS<br />

STANDARDS<br />

Licensure | Catalog | Member Directory | Contact<br />

DENTAL BUYING GUIDE<br />

Introduction Listing in the Buying Guide<br />

Buying Guide Search Contact the Buying Guide<br />

New Dentist Resources<br />

Product Category Search Results for 'Implants and Accessories'<br />

3i, Palm Beach Garden, FL<br />

Ace Surgical Supply Co Inc., Brockton, MA<br />

AIT <strong>Dental</strong>, Inc, Beverly Hills, CA<br />

Aseptico Inc, Woodinville, WA<br />

Asteto Dent Labs, Maplewood, NJ<br />

Astra Tech, Inc., Lexington, MA<br />

Attachments International, San Mateo, CA<br />

Bicon <strong>Dental</strong> Implants, Boston, MA<br />

Bien Air USA, Irvine, CA<br />

Bio-Lok International, Inc., Deerfield Beach, FL<br />

Butler Company, John O., Chicago, IL<br />

De' Plaque Inc., Victor, NY<br />

<strong>Dental</strong> Arts Laboratories Inc, Peoria, IL<br />

Dentatus USA Ltd., New York, NY<br />

Dentsply International, York, PA<br />

Drake Precision <strong>Dental</strong> Lab, Charlotte, NC<br />

Essential <strong>Dental</strong> Systems, South Hackensack, NJ<br />

EURO DENTAL IMPLANT, Houston, TX<br />

Euro Teknika, Houston, TX<br />

Florida <strong>Dental</strong> & Medical Supply, Miami, FL<br />

G & H <strong>Dental</strong> Arts, Inc., Torrance, CA<br />

Hartzell & Son, G., Concord, CA<br />

Implamed, Attleboro, MA<br />

IMTEC Corp, Ardmore, OK<br />

ITL <strong>Dental</strong>, Santa Ana, CA<br />

Keller Laboratories Inc., St. Louis, MO<br />

Lifecore Biomedical, Chaska, MN<br />

Nobel Biocare USA, Inc., Yorba Linda, CA<br />

Paragon Implant Company, Encino, CA<br />

(Fig. 1) The Sample of study was derived from the ADA <strong>Dental</strong><br />

buying guide, (Implants and Accessories) product category<br />

accessed on the 7 th February 2010<br />

Polymedia Inc., Canton, MA<br />

and maintaining PracticeWares the active <strong>Dental</strong> Supply, website Rancho Cordova, CA related to dental<br />

Procera, Yorba Linda, CA<br />

implants. Homepages Prowest <strong>Dental</strong> Lab, of San these Francisco, CAcompanies are listed by<br />

Recigno Laboratories Inc, Willow Grove, PA<br />

the ADA webpage (fig. 1). Being current means that the<br />

Steri-Oss, Yorba Linda, CA<br />

Sterngold, Attleboro, MA<br />

manufacturer was still distributing the implant system.<br />

The mhtml:file://H:\D\LAYLA\KSA\Research\Implants\D homepage is defined here Jafar-website as the first research-\implant English pop...<br />

internet webpage appearing after<br />

Page<br />

placing<br />

1 of<br />

the<br />

2<br />

simplest<br />

URL address (~.com) and relevant to dental implants.<br />

Once placed in the address bar, the URL address<br />

could either remain the same, or it could automatically<br />

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i<br />

e e<br />

e<br />

continue to lead implant dentistry. We welcome your joining Bicon clinicians from around the world, so that both you and your patients may also<br />

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i<br />

s<br />

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Search<br />

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Boston, MA<br />

2/21 Treatment Planning Tutorial<br />

2• Lndon, UK<br />

s<br />

s<br />

i<br />

(Fig. 2)<br />

Sample of one of<br />

the comprehensive<br />

webpages<br />

containing icons<br />

for the three main<br />

categories (e:<br />

educative materials,<br />

i: informative<br />

materials, s: service<br />

provisions). Flashes<br />

and animations<br />

are not active in<br />

this still image nor<br />

are embedded lists<br />

apparent<br />

s<br />

Information for Patients<br />

Since 1985 dentists have been offering patients<br />

the benefits of the Bicon <strong>Dental</strong> Implant System.<br />

With Bicon <strong>Dental</strong> Implants, your dentist has the<br />

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<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011| 15 |


edirect to another URL. If the webpage is not relevant to<br />

implants, it becomes mandatory to choose the implant<br />

product line. Then the subsequent page is considered the<br />

homepage. Some webpages mandate the selection of<br />

the region first. Once selected, the subsequent page is<br />

considered the homepage.<br />

Sample selection<br />

A convenient sample of dental manufacturers’<br />

webpages was chosen. The ADA lists 39 companies in<br />

its dental buying guide “IMPLANTS AND ACCESSORIES<br />

CATEGORY”. The list provided, at the time of research,<br />

contains links to subsequent webpages per each company.<br />

Only 12 companies were valid and current implant<br />

manufacturers and their webpages were accessed, while<br />

the rest provided webpages for companies dealing with<br />

implant related materials and devices.<br />

Icon Definition<br />

An icon is defined here as an active link, where a web<br />

component can be clicked by mouse navigation or enter<br />

controls. The webpages provided clickable icons: in the<br />

form of buttons, images, or texts. The total number of<br />

these icons are counted either if directly seen on the home<br />

page or embedded in drop-down lists or in active flashes.<br />

Once clicked, these icons linked the surfer to other<br />

webpages. The labels used on these icons are put in<br />

parenthesis “ “. The subsequent webpage was categorized<br />

according to the material presented in it (fig. 2). Variations<br />

of content are reported in terms of:<br />

Labels and the sum of Educational and scientific<br />

materials provided<br />

Including “SCIENTIFIC ACTIVITIES”, “MATERIALS”,<br />

“CAREER DEVELOPMENT”, “CLINICAL SKILL<br />

DEVELOPMENT”, “DENTAL TECHNICIAN” and “PATIENT<br />

GUIDED INFORMATION”<br />

Labels and the sum of Information materials provided<br />

Including: “INTRODUCTORY”, “DISTRIBUTION”,<br />

“CORPORATION”, “HONORARIES” and “IMPLANTS’<br />

OVERVIEW INFORMATION”<br />

Labels and the sum of Services and support<br />

materials provided<br />

Including “PRODUCTS”, “NETWORK OF USERS”,<br />

“SUPPORT”, “SERVICES”, “COMMUNICATION”, and<br />

“SIGN-UPS”<br />

Target audience<br />

The paper describes the targeted audience besides<br />

conventional users of implant related webpages,<br />

including higher dental specialties, other professions and<br />

other users.<br />

Results<br />

Sample selection<br />

Twelve webpages were accessed from the ADA list of<br />

total 39 companies present in its dental buying guide<br />

“IMPLANTS AND ACCESSORIES CATEGORY”. The list<br />

provided, contains links to subsequent webpages per<br />

each company. These were considered sufficient to<br />

develop a standardized methodology of researching the<br />

contents of home pages.<br />

Seven webpages changed their web content slightly<br />

between two points of search (7 th February 2010, 20 th<br />

march 2010). Changes mainly were in blog areas<br />

called: highlights, news blog, upcoming courses and<br />

upcoming events blogs. One changed a congress<br />

announcement, added a “NEWS” icon and updated its<br />

<strong>copy</strong> right statement. Another announced redistribution<br />

of one of its implants. The next added a “LAB” icon,<br />

updated the flash presenting current events and changed<br />

language names into flags. Finally, one changed some<br />

icons in its footer quick link bar.<br />

Icon Identification on homepage<br />

Results of materials gained by clicking icons are briefed<br />

in table 1, “HOME” is an icon that leads to the homepage<br />

itself. This is useful as the header and footer links are fixed<br />

in subsequent webpages and could help redirect the reader<br />

back to the original webpage. Other material include.<br />

Educational and scientific material: labels and<br />

subjects<br />

Scientific Activities:<br />

“COURSES” and “UPCOMING COURSE” blogs were<br />

the only icons leading to webpages about courses in two<br />

homepages.<br />

Other activities as Meetings, symposia, scientific days,<br />

forums, congresses were announced and linked to, by<br />

labels “NEWS” and “EVENTS” present in homepages as<br />

blog sections or icons.<br />

Recourse Materials<br />

Multiple labels were used, “DOCUMENTATION”,<br />

“ARCHIVES”, “STUDIES”, and “LIBRARY”. One webpage<br />

had “MANUALS”, “DOWNLOADS” and “INTERNATIONAL<br />

DOWNLOADS” for 12 languages. One webpage had<br />

recourse materials reached by icons embedded in a<br />

drop-down list called “CLINICAL RESOURCES”, and<br />

contained “ARTICLES”, “BIBLIOGRAPHY”, “BROCHURES”,<br />

“LITERATURE” and “FAQ” icons.<br />

Professional and career Development<br />

Icons leading to relevant developments were labeled:<br />

“DENTAL PROFESSIONALS”, “PROFESSIONAL<br />

EDUCATION”, “CONTINUING EDUCATION”,<br />

“COURSES”, “CALENDAR” “EDUCATION”,<br />

“EDUCATION CALENDAR”, “EDUCATION AND<br />

EVENTS”, “ONLINE TRAINING”, “CONGRESS” and<br />

“SEMINAR TOURS”.<br />

One webpage had a very rich “CONTINUING<br />

EDUCATION” icon. It contained a drop-down list of<br />

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icons, labeled by name, for 4 seminars, 3 courses, and 2<br />

residencies.<br />

Clinical Skills Development<br />

Icons used were: “VIDEOS”, “MARGINAL BONE<br />

MAINTENANCE”, “CASE PRESENTATION”, and<br />

“IMPLANT ABUTMENT SELECTION GUIDE”. One<br />

webpage provided to icons “DIGITAL DENTISTRY” and<br />

a specific “NAME-IMAGING TECHNIQUE”. Another<br />

had “DIGITAL DENTISTRY” and “INDIVIDUALIZED<br />

PROSTHETICS”. One had country selections in dropdown<br />

lists from “CAD CAM” and “CARE” a specific<br />

service for customized prosthetics.<br />

<strong>Dental</strong> technician guided educative material<br />

Icons used were labeled: “LAB”, “LABORATORIES”,<br />

“TECHNICAL TIPS” and “TECHNICAL BULLETINS” icons.<br />

Patient guided educative material<br />

Icons used were labeled: “PATIENTS”, and “CONSUMER<br />

SITE”. Two webpages had a service, selecting country<br />

and region in a drop-down list, changing the language<br />

for the patients.<br />

Three webpages were rich, providing multiple patient<br />

materials. Icons were listed in sections or in drop-down<br />

lists from a “PATIENTS” icon; “FREQUENTLY ASKED<br />

QUESTIONS” “FIND A DOCTOR, OR DENTIST”, “ALL<br />

ABOUT IMPLANTS”, “TESTIMONIALS”, “PATIENT<br />

STORIES”, ”PATIENTS GUIDE TO IMPLANTS”, ”<br />

HOW IMPLANTS CHANGE YOUR LIFE”, “DENTAL<br />

GLOSSARY”, “PATIENT EDUCATION”, “GUM DISEASE”,<br />

”RESTORATIONS”, “PATIENTS’ SITE”, ” BEFORE AND<br />

AFTER”, and ”PATIENT VIDEOS”.<br />

Information material: labels and subjects<br />

Introductory information<br />

Introductions were in the form of full paragraphs.<br />

This was the only section containing paragraphs.<br />

These paragraphs either described the company, or<br />

their implant system. Some webpages labeled those<br />

paragraphs as “WELCOME NOTES”.<br />

Distribution information<br />

One homepage had a “GLOBAL HOME” icon which<br />

lead to a new webpage with a map asking to locate the<br />

region, in which the reader is living.<br />

One homepage used both labels “GLOBAL WEBSITES”<br />

and “WORLD WIDE”.<br />

Another used “INT’l” and “EUROPE” leading to<br />

webpages describing regional offices.<br />

One webpage had local distributors in a drop-down list<br />

from the icon “PRODUCTS”.<br />

Two webpages announced distributor change for one of<br />

their implants.<br />

Corporation information<br />

Labels expected to be used as synonyms were<br />

“COMPANY”, “CORPORATE”, OR “CORPORATE<br />

HEADQUARTERS”, “INCORPORATION”, “INC” and<br />

“MANUFACTURER”. But some homepages used them as<br />

separate icons, each leading to different material.<br />

One webpage used both “MANUFACTURER” and<br />

“COMPANY”, two webpages used both “HEAD<br />

QUARTERS” and “CORPORATE”, and one used both<br />

“CORPORATE” and “OUR COMPANY”. Each of the<br />

coupled icons, led to a different webpage.<br />

News information<br />

“NEWS” and “EVENTS” are another example of icons<br />

which seem to be equal but were used as separate labels:<br />

One homepage used “EVENTS” icon to lead to a<br />

webpage listing scientific events. The “NEWS” and<br />

“PRESS ROOM” blog were about products.<br />

In another homepage, “NEWS” linked to an e-bulletin<br />

mixing product news, offers, technique resources, and<br />

scientific events. The “CALENDAR” icon led to a list of<br />

scientific events. An icon “SUBSCRIBE TO BULLETIN” was<br />

also present that webpage.<br />

The next homepage had “NEWS AND EVENTS” in one<br />

icon and led to the following: press releases, to sign-in<br />

for an e-newsletter, product news, and scientific events.<br />

Another homepage included labels “NEWS” which linked<br />

to an announcement page, “EVENTS” led to a list of<br />

trade shows and courses.<br />

Icon ”NEWS AND EVENTS” in the next homepage, led to<br />

company and financial news.<br />

The next homepage, “EVENTS” icon led scientific<br />

courses, while “NEWS” led to company news, product<br />

news and tradeshows.<br />

Another homepage had ”CORPORATION ***-NEWS”<br />

linking to corporation events and speaks at multiple forums.<br />

The next homepage had “EDUCATION AND EVENTS”<br />

linked to scientific news, “MEDIA” led to both scientific<br />

and corporate news.<br />

The later had a news blog related to product news and<br />

company activities, and “MEDIA RELATIONS” icon for<br />

referred those seeking news.<br />

The final homepage, had “TRADESHOWS”, “E-NEWS”<br />

icons and an “EDUCATION CALENDAR” were dedicated<br />

to scientific events. Icons “PRESS RELEASE” and “E-NEWS<br />

LINKING” led to webpages about product news and<br />

clinical techniques, while its “HIGHLIGHTS BLOG” was<br />

dedicated to product news and scientific events. Two<br />

webpages had no icons termed “NEWS” or “EVENTS”<br />

Honoraries<br />

One homepage offered a research prize.<br />

<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011| 17 |


Information Services and Support Educational and Scientific<br />

Introductory Information Products Activities<br />

Introductory Paragraphs 6 Products 9 Upcoming Courses Blog 1<br />

Welcome Notes 2 On-Line Stores or E-Shop 6 Courses 1<br />

About Us 2 My Cart 1 Materials<br />

General Information 1 My Order 1 Documentation 1<br />

Overview 2 My Account 1 Manuals 1<br />

Prefaces, Who Are We?, What Is …?. 0 Consumer Site 1 International <strong>Download</strong>s 1<br />

Distribution Information Great Offers 1 Archives 1<br />

Regional Offices Store 1 Studies 1<br />

Global Home 2 Other Equipment 1 Library 1<br />

Home 7<br />

Product Catalogs, Online, PDF,<br />

Ordered to Mail or Email Address, 0 Brochures 1<br />

Restricted (Registering or Subscribing)<br />

Global Websites 1 Finding A Network Of Local Users Bibliography 1<br />

World Wide 2 Locate a Doctor or Find a Dentist 2 Literature 1<br />

Int’l 1 Laboratories 1 FAQ 1<br />

Europe 1 Support Articles 1<br />

Distributors 2 Products and Services 1 <strong>Download</strong>s 1<br />

Global Network, Distributors 1<br />

Costumers Support, and Costumers<br />

Services<br />

2 Clinical Resources 1<br />

Representatives, Trade Links, Regional<br />

Homepages, Put on a Map<br />

0 Technical Help and Technical Service 2<br />

Presentation Briefings, Multimedia, Publications,<br />

Abstracts, Case Reports, Books<br />

Corporation Information Engineering Services 1 Professional and Career Development<br />

Manufacturer 1 Advisory Board 1 <strong>Dental</strong> Professionals 2<br />

Company and Our Company 8 Return Policy 1 Calendar 1<br />

Head Quarters 1 Interaction Courses 1<br />

Corporate 3 Comment and Make an Inquiry 2 Education 3<br />

Name- Inc. 1 Help 1 Professional Education 1<br />

Company Logos- Sentence 4 Contact 5 Continuing Education 1<br />

President’s Message 1 Contact Us, 5 Education Calendar 1<br />

Executive Profile 1 Email Us 1 Education and Events 1<br />

Company News 1 Search Boxes 7 Congress 1<br />

Jobs and/or Careers 5 Search 1 Seminar Tours 1<br />

Investors and/or Investor Relation 2 Sitemap 3 Online Training 1<br />

Carriers Regional Sales Managers 1 Signups Name- Residency 2<br />

Company Activities Platinum Name- Course 3<br />

Trade Shows and Appearances 3 Login Name- Seminar 4<br />

Events 3 Extranet Login Clinical Skill Development:<br />

News 4 Signup for an E-Bulletin 1 Videos 2<br />

News and Events 2 E-News Letter 1 Manuals 1<br />

E-News 1 Signup Forms for E-News 2 Cases 1<br />

Sign-In for an E-News Letter 1 Pod Casts 1 Case Presentation<br />

Subscribe to Bulletin 1 Web Casts 1 Digital Dentistry 2<br />

Corporation Name-News 1 Syndications as RSS 0 Name of Imaging Technique 2<br />

Education and Events 1 Individualized Prosthetics 1<br />

Media 1 Implant Abutment Selection Guide 1<br />

Highlights Blog 1 CAD CAM and CARE 1<br />

Press Room Blog 1 On Marginal Bone Maintenance 1<br />

News Blog 1 <strong>Dental</strong> Technician Guided Information<br />

Media Relations 1 Laboratories 2<br />

0<br />

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Information Services and Support Educational and Scientific<br />

Introductory Information Products Activities<br />

Press Release 1 Technical Tips 1<br />

Company History, Corporation Structure,<br />

Staff Info.<br />

0 Technical Bulletins 1<br />

Legal and Webpage Issues Lab 1<br />

Site Requirements 1 Patient Guided Information<br />

Copyright Declarations 10 Patients’ Resource 1<br />

Legal Notices/ Terms/ Information 4 Patients 9<br />

Privacy Policy/ Statement 7 Patients’ Site 1<br />

Disclaimer 1 Patient Education 1<br />

Trade Marks 1 Consumer Site 1<br />

Conditions/Terms of Use 3 Frequently Asked Questions 1<br />

Imprint 1 Find a Doctor, or Dentist 1<br />

Honoraries All About Implants 1<br />

Research Prize 1 Patients Guide to Implants 1<br />

Surveys 3 Patient Videos 1<br />

Honors, Voted, Prizes (Products or<br />

Company) Quality Assurance Approvals,<br />

0 Before and After 1<br />

Polls<br />

Implants’ Overviews <strong>Dental</strong> Glossary 1<br />

Implant History 1 Restorations 1<br />

Image of the Abutment/ Implant 3 Single Tooth Restoration 1<br />

Implant Fixtures 1 Multiple Teeth Restoration 1<br />

Healing Abutments 1 Over Dentures 1<br />

Implants and Abutments 1 Partial Dentures 1<br />

Innovation, Advancements, Latest,<br />

What's Hot, New!<br />

0 Gum Disease 1<br />

Past Products, Deceased Lines, Manufacturing<br />

Process<br />

0 Testimonials 2<br />

Compatibility with Other Implant<br />

Systems<br />

0 Patient Stories 1<br />

How Implants Change Your Life 1<br />

(Table 1) Icons and content numbers are reported, for those included in dental implant manufacturers’ home page.<br />

Note: (“ ”) designate icons labels, (/ )separates possible synonyms, “INT”L” = international, FAQ = frequently asked questions (labels<br />

are quoted exactly as they appear in the webpage), and finally, “name- ******” indicates that the label uses trade names for the<br />

incorporation or a product line in the label. These are not reported here to preserve the identity of webpage. Repeated icon names in<br />

different categories indicate that these icons lead to different webpages addressing each separately, although having the same label.<br />

Surveys<br />

One homepage provided 3 icons to different surveys.<br />

Implants’ overviews<br />

Some of this information was present in subsequent<br />

webpages from “NEWS” and “EVENTS” icons, as<br />

advancements. More information will be displayed in the<br />

“PRODUCTS” icon explained later. Other information<br />

were contained in icons ”IMPLANT FIXTURES” and<br />

“HEALING ABUTMENTS”. One webpage provided an<br />

icon indicating the compatibility of their abutment with<br />

other implant systems.<br />

Services and support material: labels and subjects.<br />

Products: homepages provided information about<br />

products using the label “PRODUCTS” in the form of<br />

icons, flashes, and videos.<br />

Three homepages studied were redirected to implant<br />

webpages, as the first simple (~.com) webpage had no<br />

information on implants but featured other products.<br />

Once reaching the implant related webpage, now<br />

considered the homepage, one of them had a dropdown<br />

list from “PRODUCTS” icon listing 4 implants and<br />

3 implant related materials. The other two listed the<br />

implants and related products on the webpage itself.<br />

Icon “PRODUCTS”, is another example of how a<br />

label is variably used and leads to different webpage<br />

materials. One homepage used the label “PRODUCTS”<br />

<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011| 19 |


that led to other products which were not implants or<br />

implant related. Another homepage had a drop-down<br />

list embedded in the “PRODUCTS” icon, hiding further<br />

icons for 8 implant products, 5 prosthetic products, and<br />

11 surgical regenerative materials, related to implant<br />

therapy. One homepage had “PRODUCTS” icon leading<br />

to 2 implant lines and 5 implant related material.<br />

The next description of the label “PRODUCTS” is more<br />

complex as more material lie one click away, even not<br />

related to implant products.<br />

One homepage used “PRODUCTS” icon to lead to<br />

a webpage containing introductory paragraphs and<br />

further icons for implants, implant related materials<br />

and software. It also had icons labeled “MANUALS”,<br />

“PROCEDURES”, “PRODUCT CATALOGUE” and “HOW<br />

TO ORDER”.<br />

A second homepage linked “PRODUCTS” to a<br />

webpage containing images and an overview of one<br />

implant, more icons for “PRODUCT INFORMATION”,<br />

“CASE STUDIES”, “IMPLANTS”, “ABUTMENTS”<br />

“KITS”, “INSTRUMENTATION”, ” GRAFT MATERIAL”,<br />

“TRANSITIONAL IMPLANTS”, ” EDUCATIONAL<br />

MATERIALS”, “REFERENCES”, “FAQ” and “DOWNLOAD<br />

PDF CATALOGUE”.<br />

A third homepage linked “PRODUCTS” to a webpage<br />

containing an overview of one implant then icons<br />

FOR “IMPLANTS”, “REGENERATIVE”, “SURGICAL”,<br />

“RESTORATIVE”, “SHOPPING CART”, “CATALOGUE”,<br />

“SURGICAL MANUAL” and “CLINICAL OVERVIEW”.<br />

A fourth webpage homepage linked “PRODUCTS” to a<br />

webpage containing a list of further icons for “IMPLANT<br />

PRODUCTS” and 6 products not related to dental<br />

implants. It also had the contact address.<br />

The fifth homepage linked “PRODUCTS” to a webpage<br />

containing introductory paragraphs, 5 implants<br />

icons, and icons labeled “NEW PRODUCTS” and<br />

“INSTRUMENTS COMMON TO IMPLANTS”.<br />

The sixth homepage linked “PRODUCTS” to a<br />

webpage containing introductory paragraphs, 7<br />

icons for implants and implant related materials, and<br />

icons labeled “IMPLANT TRAINING”, “CONCEPTS”,<br />

“SOLUTIONS FOR INDICATION”, “CASES AND<br />

SOLUTIONS” “PRODUCTS”, “SCIENTIFIC EVIDENCE”<br />

“INDIVIDUALIZED PROSTHETICS”, “DIGITAL<br />

DENTISTRY”, “ EDUCATION AND EVENTS”, “SCIENCE<br />

AND ENOVATION” “CLINICAL MANUAL”, “SHOP<br />

ONLINE” “PRODUCT QUICK LINKS” and “DIGITAL<br />

PRECISION” ICONS.<br />

The final webpage homepage linked “PRODUCTS” to a<br />

webpage containing an introductory paragraph, a drop<br />

down-list of countries, to locate choose local markets<br />

and one icon leading to “CAD CAM”<br />

Finding a network of local users<br />

Three homepages provided this service by icons labeled<br />

as “LOCATE A DOCTOR” icon in a drop-down list from<br />

“PATIENTS’ RESOURCES”, “FIND A DENTIST” in the drop<br />

down-list from “PATIENTS”, and “LABORATORIES” in the<br />

drop down-list from “PROGRAMS”<br />

Support<br />

Labels used by icons leading to this material were<br />

“PRODUCTS AND SERVICES”, “COSTUMERS SUPPORT”,<br />

“COSTUMERS’ SERVICES”, “TECHNICAL HELP”,<br />

“TECHNICAL SERVICE”, “ENGINEERING SERVICES” icon for<br />

designers, “ADVISORY BOARD” and a “RETURN POLICY”<br />

Interaction<br />

Homepages provided some interaction with the<br />

consumers by asking for Feedback and interaction in<br />

icons labeled “COMMENT” and “MAKE AN INQUIRY”,<br />

“HELP”, and “ADVISED CONTACTS” icons. Search boxes<br />

and Sitemaps helped online interaction with the web<br />

content of subsequent pages.<br />

Signups<br />

Membership applications were present by icons, as<br />

well as “SIGNUP FOR AN E-BULLETIN” and “E-NEWS<br />

LETTER”. One homepage had “POD CASTS” and<br />

multiple “WEB CASTS” to sign up for.<br />

Sum of links per Category<br />

Webpages obtained in this sample, contained a sum of<br />

93 informative icons, 64 services and support icons and<br />

85 educative icons, after excluding the icons related to<br />

legal and <strong>copy</strong>right notes, not relevant to the study.<br />

Three webpages could be described as comprehensive,<br />

including icons leading to all categories under study.<br />

They linked to 78, 57 and 42 different webpages<br />

respectively. One webpage (117 icon links) lacked icons<br />

for the essential educational category on its homepage.<br />

Interested groups which may find relevant material<br />

Patients, general dental practitioners and technicians<br />

could be considered conventional users of these<br />

webpages. They would seem to benefit the most as the<br />

majority of the icons, relevant to the three categories<br />

under study, were directed to this group.<br />

However, some icons and content of the homepages<br />

were found to meet the interest of: Periodontists,<br />

Surgeons, Prosthodontists, CAD CAM users, Esthetic<br />

dentists, and Radiologist. These included a few, highly<br />

specific, line of products or highly specialized techniques.<br />

Other dental professions as researchers, reviewers of<br />

systematic reviews, evidence seekers, academicians and<br />

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students could find a share of the interest, but indirectly; as<br />

there are no dedicated icons addressing their specific needs.<br />

Unusual interests were met, but with a few number<br />

of icons, for the general public, dental administrative<br />

workers, treatment seekers or tourists, investors, the<br />

press, internet link seekers, internet bloggers, web page<br />

developers, designers and inventors.<br />

Discussion<br />

The methodology developed in this study<br />

This study is the first – within the knowledge of the<br />

author- which studies the dental implant manufacturers’<br />

webpages from this angle. The necessity for categorizing<br />

materials linked from the webpages and presenting<br />

this work comes from a previous study where there<br />

was a need to scan all available lists of dental implant<br />

manufacturers to compare implant–abutment interfaces<br />

and its mechanics. The researchers were faced by the<br />

huge variability of webpages and the confusion in the<br />

labels of icons, leading to different materials each time.<br />

Of a total of 150 webpages, the gathered experience<br />

was sufficient to develop the methodology for this study,<br />

and be presented to the reader who will face such<br />

confusion when doing any search for multiple implant<br />

systems for any reason.<br />

Educative material was the focus of this study as<br />

educating possible users increase their confidence and<br />

provide them with sufficient evidence as required for high<br />

quality treatments. This methodology can be repeated to<br />

study any dental or medical product or service providers’<br />

webpages to describe and develop recommendations for<br />

their content.<br />

The role of implant manufacturers’ webpages<br />

Implant manufacturers’ have developed their webpages<br />

to become a rich niche. Attracting the users or potential<br />

users to longer sessions of webpage viewing and surfing<br />

would indirectly help making the implant system familiar<br />

to visual and comprehension senses. These methods<br />

include:<br />

• Developing more interactions by clickable and<br />

navigation-activated icons, makes it less boring.<br />

• Additions of whole page flashes are still limited in the<br />

sample of study, but partial flashes make the webpage<br />

appear lively.<br />

• The addition of larger numbers of icons embedded<br />

in drop-down lists and pop-out windows increase the<br />

chance of including a term, thatmeets an interest or need.<br />

The efficiency of searching sessions in targeting needed<br />

information is reached as more searches are done,<br />

more subsequent webpages are explored and refined<br />

and using correct tools as search boxes and site maps.<br />

It is guided by how the learner is motivated. 9 The use<br />

of a search box, for even the experienced, is the next<br />

immediate option, if the relevant icon of interest is not<br />

perceived directly from the homepage. So having such<br />

tool is essential. Searches usually include an average of<br />

two terms. If well studied, the webpage developers of<br />

the site would annually accumulate these search terms<br />

placed in their search boxes and add or rename their<br />

homepage icons to reflect those terms, most in demand.<br />

Customizing the contents, either to regions, languages,<br />

individual accounts, logins, memberships and icons<br />

labeled “my-*****”, may increase pertinence. Finally,<br />

including multiple links to a single target increases the<br />

chance of clicking an icon.<br />

The previous were general methods used by most<br />

webpages of the study. Three webpages were considered<br />

comprehensive as they used more methods to attract<br />

the surfer. They used multiple icon formats, leading to a<br />

single page as a way of overcoming variability present<br />

in internet experience of surfers. Attracting casual users<br />

by images, flashes, and videos seems logic and was<br />

used. Also including quick link bars in the header,<br />

footer, and the side, would increase the chance of hitting<br />

relevant information. Repeating those quick link bars<br />

in subsequent pages makes the surfer oriented. Having<br />

a site map has also this effect. Assigning sections in<br />

the webpage, for each of the conventional users, and<br />

concentrating their relevant links in that area, are even<br />

more methods used.<br />

Are the implant manufacturers’ webpages informative?<br />

Looking at the homepage only, the direct answer to this,<br />

is no!. There is a very limited number of paragraphs that<br />

could add to the information of the surfer. These are<br />

limited to welcome notes, very short sentences displaying<br />

the company’s logo, or introductory paragraphs either to<br />

the company or implant system used.<br />

But when clicking icons for educative, informative, and<br />

supportive or service providing materials, opening each<br />

single webpage which is present one-click away could<br />

answer some of that need. The action of webpages acting<br />

as good directories should also be balanced with the<br />

limitation that most users have, which is that they click no<br />

more than only two pages away. So it is essential to have<br />

the actual information, one or two-clicks away, at best.<br />

Examples of this suggested confusion were for the<br />

icons “NEWS”, “EVENTS”, “PRESS RELEASE” and<br />

“PRODUCTS”. The subsequent pages were variable.<br />

Some did not include enough information, but only<br />

adding a new list of icons to be searched. Others include<br />

icons which may seem to be essential, but hidden from<br />

the homepage. If taking the classification of categories<br />

used in this study as a reference, some information in the<br />

subsequent pages was under un-expected icons labels,<br />

mixing the needs, and adding to the confusion of surfer.<br />

Opening the subsequent page was essential for another<br />

reason. Many of the terms used in the labels of icons<br />

<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011| 21 |


were not clear, and only after opening the next page,<br />

was the meaning explored. Many icon labels, which<br />

seemed to be synonyms, were not used as such. So there<br />

is a need for a standardized labeling method.<br />

Are the implant manufacturers’ webpages educative?<br />

To answer this critical question, levels of education are<br />

separated, in the following discussion.<br />

Patients’ education material<br />

Retention of dental information is enhanced by the net 10<br />

and consumers look for health care information online. 11<br />

using the net by patients was to change dentists,<br />

travel, discuss treatment with their dentists, ask for<br />

more explanations, which may be considered by some<br />

clinicians to be a burden on valuable clinical time. But<br />

this had, in some occasions, led to patients demanding<br />

inappropriate care or more complex treatment, if the<br />

information is not validated. 12<br />

Educating this group is essential, by providing an<br />

abundance of scientifically valid material in reliable<br />

resources, rather than the subjective material, limited<br />

in experience and disseminated in chat rooms and<br />

unspecialized forums.<br />

Implant webpages provide material for patients in many<br />

forms. Introductory into implants, implant treatment<br />

options, what is expected from the treatment and<br />

brochures and leaflets. Customization of the material<br />

is done in a few webpages, where language is selected<br />

by the patient. Services follow, leading patients to<br />

doctors who use their system, testimonials and stories<br />

of who had a chance to get them done, ” BEFORE AND<br />

AFTER” images, and ”PATIENT VIDEOS”. All of these are<br />

minimally educative-informative icons. Better educative<br />

resources are expected in labeled icons: “FREQUENTLY<br />

ASKED QUESTIONS” “DENTAL GLOSSARY”, “PATIENT<br />

EDUCATION”, “GUM DISEASE”, ”RESTORATIONS”,<br />

“PATIENTS’ SITE”, and these are present as icons in<br />

more comprehensive webpages. These were present in a<br />

limited number of webpages.<br />

Undergraduate dental surgeons, hygienists,<br />

assistants, and technician students<br />

For this group, internet is now promoted to be an<br />

education recourse and assistant to conventional methods.<br />

Students had responded by accepting it, retaining<br />

more information by it, and considering it an essential<br />

adjunctive to conventional methods. 13,14 Providing the<br />

material through a central location for e-resources, and<br />

be connected to wider geographical distributions as by<br />

podcasts, significantly increased their interest. 15<br />

Student preferences were then announced by many<br />

studies about what should the material look like on the<br />

net, to consider it educative. Material is preferred to be<br />

accessed off-campus, 16 standardized in terms of labels<br />

and format, outlined in an e-syllabus, 17 and visually<br />

perceived. Illustration methods are preferred in the forms<br />

of “SLIDE GALLERIES”, “SLIDE SERIES” and streaming<br />

videos. High quality images or videos were preferred if<br />

supported by the DSL connection, contained sound and<br />

text subtitles, short, and embedded in the text. 18 Online<br />

quizzes produced variable response. Such inclusions<br />

produced greater interaction, motivation and knowledge<br />

retention. 19-21<br />

As previous experience with online material is confounding<br />

factor to this group, 22 material provided should have simple<br />

interactions to reach needed information.<br />

The introduction of dental implants into the curriculum<br />

of these undergraduate courses has been reliant on<br />

text books and lecture notes. The role of dental implant<br />

webpages in providing educative material to these<br />

groups is anticipated but not met directly as the student<br />

is faced with no icons relevant to their needs. They could<br />

access some of the patient materials, but would not<br />

be able to comprehend all the professional terms and<br />

specialized techniques for technician and professional<br />

sections. Simple terminologies, more illustrated<br />

techniques and well labeled icons could be areas of<br />

further advancement towards being more educative.<br />

Schools that adopt teaching comprehensive treatment<br />

planning and team approach therapies, in final years,<br />

are faced with bit more difficulty. The reliance on<br />

experienced educators increases, to guide the students<br />

through their pile of accumulating study materials. The<br />

level of depth varies, in these approaches, according<br />

to the dental school plans. The educators may face the<br />

problem of introducing the current systems, using any of<br />

the material provided by the implant webpage as they<br />

are insufficiently directed from the homepage icons,<br />

and may lack comparative clinical studies leading to<br />

conclusions from the experience.<br />

<strong>Dental</strong> education<br />

Professional development materials are present in<br />

many dental implant manufacturer webpages. Different<br />

levels of specialty are also present but the problem is<br />

faced where many of the intended material is present<br />

in subsequent webpages, which may not be clear and<br />

explored by the homepage icons. If the item is not<br />

present, then facilities as site maps and search boxes<br />

are the next choice. Some users often go straight to the<br />

search feature on a site when it is present even before<br />

searching the icons of the homepage. 23<br />

This richness meets the definitions of a dental portal but also<br />

the definition of power searching; process of finding good<br />

quality information from the web as quickly and as easily<br />

as possible. 24 But scientific validity and level of evidence<br />

produced in these webpages warrant more research.<br />

| 22 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011


A side missing from these webpages is the retrieval<br />

of implants in cases of failure. 25 Only one webpage<br />

provided a return policy. Presence of such material<br />

or through communication with a suggested list of<br />

experienced clinicians, can aid in reducing the more<br />

stressful aspects of implant dentistry.<br />

Limitations of the study<br />

1. It is a study of only the first homepage as it is<br />

considered here as the first window which should<br />

guide the browser to their specific knowledge needs.<br />

2. The use of synonyms could not be concluded. There<br />

are no references for the number and use synonyms<br />

that may indicate a single subject. These are<br />

collectively added to the lists but those that were felt to<br />

be different were separated.<br />

3. This research should mandatory be repeated, using<br />

this methodology, but studying the webpages one or<br />

two pages away from all homepage icons. This would<br />

give a better insight to the answer of this study’s<br />

question. e.g products may lead to a catalogue,<br />

download material can lead to scientific literature<br />

or catalogues. So even the lack of the icons leading<br />

to some category materials, may not necessarily be<br />

inferring their lack from the whole page.<br />

4. The scientific validity of educative material and the<br />

level of evidence provided by them have not been<br />

verified. The material could be highly reliable if<br />

produced from systematic reviews and randomized<br />

clinical trials, or less reliable if concluded from case<br />

studies, non-controlled short term studies. Better<br />

scientific referencing of information is required.<br />

5. It is recommended for quality assurance bodies to<br />

mark presented materials according to the level of<br />

evidence.<br />

6. There is lack in educative materials for students<br />

although they could share the regular interest on<br />

sections of FAQ or introduction to but labeling a<br />

section for students would seem reasonable.<br />

Conclusions<br />

Richness in the webpages provided by dental implant<br />

manufacturers meets the need for many. However,<br />

scientific validity and level of evidence produced in these<br />

webpages warrant more research. Better referencing<br />

of educative material is required. Student educative<br />

materials are lacking.<br />

Acknowledgement<br />

The author would like to acknowledge the Deanship of<br />

Research in Jordan University of Science and technology<br />

for funding multiple <strong>Dental</strong> Implant researches, from<br />

which the experience had accumulated to perform this<br />

study. And would thank colleagues at the faculty of<br />

Dentistry for in depth discussions and cooperation.<br />

References<br />

1. Mattheos N, Stefanovic N, Apse P, Attstrom R, Buchanan J, Brown P,<br />

et al. Potential of information technology in dental education. Eur J<br />

Dent Educ. 2008;12:85-92.<br />

2. Bufano Ub, Branch-Mays G, Gilliam J, Romberg E. An Online<br />

Multimedia Treatment Planning Tool: Effect On <strong>Dental</strong> Students’<br />

Knowledge In Using Standardized Clinical Data. J Dent Educ.<br />

2010;74:50-7.<br />

3. Cook DA, Levinson AJ, Garside S, Dupras DM, Erwin PJ, Montori<br />

VM. Internet-based learning in the health professions: a metaanalysis.<br />

JAMA. 2008;300:1181-96.<br />

4. Schleyer TK, Dodell D. Ajuwon, Grace A. Continuing dental<br />

education requirements for relicensure in the United States. J Am<br />

Dent Assoc. 2005;136:1450-6.<br />

5. Sanchez Dils E, Lefebvre C, Abeyta K. Teledentistry in the United<br />

States: a new horizon of dental care. Int J Dent Hyg. 2004;2:161-4.<br />

6. Schleyer TK, Corby P, Gregg AL. A preliminary analysis of the dental<br />

informatics literature. Adv Dent Res. 2003;17:20-4.<br />

7. Song M, Spallek H, Polk D, Schleyer T, Wali T. How information<br />

systems should support the information needs of general dentists<br />

in clinical settings: suggestions from a qualitative study. BMC Med<br />

Inform Decis Mak. 2010;10:7.<br />

8. Schleyer T, Spallek H. An evaluation of five dental Internet portals. J<br />

Am Dent Assoc. 2002;133:204-12.<br />

9. Grimes EB. Student perceptions of an online dental terminology<br />

course. J Dent Educ. 2002;66:100-7.<br />

10. Patel JH, Moles DR, Cunningham SJ. Factors affecting information<br />

retention in orthodontic patients. Am J Orthod Dentofacial Orthop.<br />

2008;133:S61-7.<br />

11. Schleyer TK, Spallek H, Torres-Urquidy MH. A profile of current<br />

Internet users in dentistry. J Am Dent Assoc. 1998;129:1748-53.<br />

12. Ní Ríordáin R, McCreary C. <strong>Dental</strong> patients’ use of the Internet. Br<br />

Dent J. 2009;207:583-675.<br />

13. Patel JH, Moles DR, Cunningham SJ. Factors affecting information<br />

retention in orthodontic patients. Am J Orthod Dentofacial Orthop.<br />

2008;133:S61-7.<br />

14. Al-Jewair TS, Azarpazhooh A, Suri S, Shah PS. Computer-assisted<br />

learning in orthodontic education: a systematic review and metaanalysis.<br />

J Dent Educ. 2009;73:730-9.<br />

15. Barley SR. Computer-based distance education: why and why not.<br />

The Educational Digest 1999;65:55-9.<br />

16. Grimes EB. Student perceptions of an online dental terminology<br />

course. J Dent Educ. 2002;66:100-7.<br />

17. McCann AL, Schneiderman ED, Hinton RJ. E-teaching and learning<br />

preferences of dental and dental hygiene students. J Dent Educ.<br />

2010;74:65-78.<br />

18. Boberick KG. Creating a web-enhanced interactive preclinic<br />

technique manual: case report and student response. J Dent Educ.<br />

2004;68:1245-57.<br />

19. Fleming DE, Mauriello SM, McKaig RG, Ludlow JB. A comparison<br />

of slide/audiotape and Web-based instructional formats for<br />

teaching normal intraoral radiographic anatomy. J Dent Hyg.<br />

2003;77:27-35.<br />

20. Pilcher ES. Students’ evaluation of online course materials in fixed<br />

prosthodontics: a case study. Eur J Dent Educ. 2001;5:53-9.<br />

21. Eynon R, Perryer G, Walmsley AD. <strong>Dental</strong> undergraduate<br />

expectations and opinions of Web-based courseware to<br />

supplement traditional teaching methods. Eur J Dent Educ.<br />

2003;7:103-10.<br />

22. Gallagher JE, Dobrosielski-Vergona KA, Wingard RG, Williams<br />

TM.Web-based vs. traditional classroom instruction in gerontology:<br />

a pilot study. J Dent Hyg. 2005;79:7.<br />

23. Ross NCM, Wolfram D. End User Searching on the Internet: An<br />

Analysis of Term air Topics Submitted to the Excite Search Engine. J<br />

Amer Soc Inform Sci. 2000;51:949-58.<br />

24. Spink A, Wolfram D, Jansen MBJ, Saracevic TJ. Searching The<br />

Web: The Public and Their Queries. Amer Soc Inform Sci Tech.<br />

2001;52: 226-34.<br />

25. Toffler M. A dose of implant reality. State Dent J. 1999;65:28-32.<br />

<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011| 23 |


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Solving TMJ Problems with Orthodontic<br />

Treatment and Cosmetic Mouth Rehabilitation<br />

Case Series<br />

Leonid Rubinov<br />

DDS, PhD<br />

• Instructor of the International<br />

Association for Orthodontics<br />

• Fellow of the American<br />

Association for Functional<br />

Orthopedics<br />

• Clinical Professor of the<br />

International Department of<br />

NYU’s College of Dentistry,<br />

USA<br />

drrubinov@yahoo.com<br />

Abstract<br />

TMJ disorder is considered a gray area of dentistry. Treatment of these types of<br />

problems with TMJ splints is often a temporary solution. Achieving a permanent<br />

correction is usually difficult, because it requires changing the position of mandibular<br />

condyles inside a TM joint. In many cases this goal is unattainable using only one<br />

treatment modality. The unique treatment philosophy described in this article requires<br />

a multidisciplinary approach. It starts with orthodontic treatment which enhances the<br />

relationship inside the TM joint, alleviates TMJ symptoms and sets the stage for further<br />

full mouth rehabilitation, if necessary. Orthodontic treatment in these cases is performed<br />

with special attention to dentofacial orthopedics. The end result of this treatment<br />

creates improved position of condyles inside TMJ, proper three dimensional orthopedic<br />

relationships between the patient’s jaws and correct occlusion. This produces greatly<br />

improved facial proportions, enhanced facial appearance and youthful look of the<br />

patient while laying the groundwork for more successful restorative procedures.<br />

Keywords: TMJ, Orthodontic treatment, Cosmetic rehabilitation, Dentofacial orthopedics.<br />

Introduction<br />

TMJ disorder is considered a gray area of dentistry. According to LeResche, 1 “Overall,<br />

it is estimated that approximately 10% of population over the age of 18 years have<br />

pain in the TMJ region”. 1 There are a lot of uncertainty and different opinions what<br />

is causing the TMD, how to treat it and even if any treatment required at all. After<br />

reviewing literature Luter, 2 Luter and others 3 did not find enough evidence to support<br />

or refute the use of orthodontic therapy for the treatment of temporomandibular<br />

disorders (TMD). Meanwhile, it has been suggested that an internal derangement and<br />

TMJ symptoms may be caused by the mandible being trapped and retracted behind<br />

maxillary front teeth, forcing the TM disc anteriorly due to the condyles having been<br />

forced posteriorly. 4 Treatment of TMD with different types of TMJ splints is a temporary<br />

solution. It is suggested that a permanent occlusal orthodontic treatment to be used<br />

after a change in the position of the mandible after repositioning-stabilization splints. 5<br />

In his articles Brenkert, 6,7 described different choices for orthodontic treatment for the<br />

anterior repositioned splint stabilized patients following anterior disk (s) displacement.<br />

He outlined of how to properly treat these patients to consistent stabilized occlusion<br />

compatible with the TMJ splint position. DeSteno 8 discussed stabilization and<br />

rehabilitation principles of the therapy of the patients after TMJ splints, emphasizing<br />

prosthodontic and orthodontic perspective.<br />

The goal of this article is to lay out the framework for a unique treatment philosophy.<br />

An interdisciplinary approach, starting with dentofacial orthopedic and orthodontic<br />

treatment, allows the dentist to focus on proper arrangements inside TMJ. Changing<br />

the size of the Maxilla is giving the dentist an opportunity to advance Mandible down<br />

and forward, thus improving position of condyles and alleviating the majority of TMJ<br />

symptoms. It is also is setting up condition for a much better restorative phase of the<br />

treatment and usually improving facial appearance of the patient too.<br />

The cases presented in this article can be seen as an illustration of how the<br />

interdisciplinary approach can help in solving TMJ issues. Orthodontic treatment in<br />

| 26 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011


the beginning, with special attention to dentofacial<br />

orthopedics, will place teeth and jaws in a position that<br />

ensures the improved relationships inside TMJ and the<br />

successful completion of the subsequent prosthetic phase<br />

of the patient’s full mouth rehabilitation and greatly<br />

improve the overall esthetic result.<br />

Case 1<br />

Patient O., 40 years old presented with several concerns<br />

about her smile (figs. 1, 2): her front teeth are too<br />

vertical, gummy smile, cosmetically unpleasant prosthetic<br />

restorations (fig. 3).<br />

She also had numerous TMJ symptoms such as: “tension”<br />

headaches, headaches in right and left temple areas and<br />

back of her head. She had frequent neck aches, difficulty<br />

of opening her mouth wide, clicking sounds in her joints<br />

and ringing sounds in her ears. She was grinding her<br />

teeth at night and had pain in her TM joints.<br />

Clinical and X ray evaluations showed, that patient had<br />

Class II malocclusion, with her front maxillary teeth in<br />

vertical, almost retrusive position, trapping her mandible<br />

distally (fig. 4).<br />

Distally displaced position of the mandible pushed<br />

patient’s condyles into posterior/ superior position, thus<br />

causing abovementioned TMJ symptoms.<br />

(Figs. 1 & 2) Facial view & Natural smile of the patient O.<br />

before treatment<br />

(Fig. 3) Retracted view of the patient smile before treatment<br />

The objective of the treatment plan for this patient<br />

was to advance her mandible down and forward,<br />

thus improving her appearance and eliminating TMJ<br />

problems. Expansion of Maxilla along with protrusion<br />

of maxillary incisors forward was necessary in order to<br />

achieve required advancement of mandible.<br />

These objectives were accomplished in 4 months of<br />

treatment by using 3-Way Sagittal Removable Appliance<br />

(fig. 5).<br />

Upper and lower braces were placed in order to move teeth<br />

into best possible positions for future restorative treatment.<br />

At the end of this stage of the treatment skeletal changes<br />

in patient’s face and jaws were obvious (fig. 6).<br />

Positions of the condyles inside TMJ also changed,<br />

helping alleviate and eliminate most of her TMJ<br />

symptoms (figs. 7, 8).<br />

(Fig. 4) Cephalometric X ray before treatment<br />

Restorative part of the treatment was performed after<br />

completion of orthodontic phase. Zirconia crowns were<br />

placed on teeth #7, #10, #12, #13, #14, #19, #20,<br />

#21, #28 and #29. Porcelain veneers were place on<br />

teeth #4, #5, #6, #8, #9 and #11. (figs 9-11)<br />

The final results of the treatment may be described as<br />

a triple effect:<br />

First: Patient’s TMJ symptoms have completely disappeared,<br />

allowing her pain free and symptoms free existence.<br />

(Fig. 5) Retracted view after treatment with removable appliance<br />

<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011| 27 |


Second: Patient’s facial appearance improved<br />

dramatically, providing her with much more balanced,<br />

proportional and youthful look.<br />

Third: Her smile got better with new esthetically pleasing<br />

restorations, better functional occlusion and eliminations<br />

of gummy smile.<br />

Case 2<br />

Patient I., 33 years old, (fig. 12) came to the office with<br />

several TMJ symptoms such as: “tension” headaches,<br />

headaches in front of her head. She had frequent neck<br />

aches, stiff neck, clenched her teeth during day and<br />

night and was grinding her teeth at night.<br />

Clinical evaluation showed, that patient had Class II<br />

malocclusion with deep overbite and large overjet, placing<br />

her condyles in superior/posterior position (figs. 13, 14).<br />

(Fig. 6) Cephalometric X ray after the treatment<br />

The objective of the treatment plan for this patient was, like<br />

with patient in case 1, to advance her mandible down and<br />

forward, thus improving her appearance and eliminating<br />

TMJ problems. Expansion of maxilla was necessary to<br />

achieve required advancement of mandible. This goal<br />

(fig.15) was achieved by using fixed orthopedic appliance.<br />

(Fig. 7) Transcranial X-ray of<br />

left TMJ before treatment<br />

(Fig. 8) Transcranial X-ray of<br />

left TMJ after treatment<br />

Further orthodontic treatment, using braces and<br />

functional appliances, allowed advancing mandible<br />

down and forward, effectively placing condyles in proper<br />

position inside TMJ.<br />

Fabrication of two 3-unit Zirconia bridges to replace<br />

missing first mandibular molars and support newly<br />

established occlusion complete the restorative part of the<br />

treatment.<br />

The final result of the treatment of this patient was<br />

similar to the patient in case 1: Patient’s TMJ symptoms<br />

were eradicated, patient’s facial appearance changed<br />

pretty drastically (fig. 16) and her occlusion improved by<br />

eliminating overbite and overjet (figs. 17, 18).<br />

(Figs. 9 & 10) Facial view & Natural smile after treatment<br />

(Fig. 11) Retracted view of the patient smile after restorative phase<br />

Discussion<br />

The interdisciplinary treatment of the patients with<br />

TMJ problems is difficult to accomplish due to the<br />

complexity of maintaining acquired mandible position,<br />

which is achieved through its anterior reposition. The<br />

prevailing treatment philosophy in general dentistry and<br />

orthodontics is based on assumption of immovability of<br />

the alveolar bone after the development of dentoalveolar<br />

complex is completed and the permanent teeth have<br />

erupted. This kind of approach is making the goal of<br />

permanently repositioning the mandible downward and<br />

forward is impossible to achieve in many TMJ cases due<br />

to size and position of maxilla. To the contrary, the new<br />

treatment philosophy with special attention to dentofacial<br />

orthopedic, described in this article, results in an<br />

accomplishment of above-mentioned reposition of the<br />

mandible. The new orthopedically improved occlusion<br />

| 28 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011


(Fig. 12) Facial view of<br />

patient I. before treatment<br />

(Fig. 16) Facial view of<br />

patient I. after treatment<br />

(Fig. 13) Retracted view before treatment<br />

(Fig. 17) Retracted view after treatment<br />

(Fig. 14) Retracted view<br />

of left side occlusion before<br />

treatment<br />

(Fig. 18) Retracted view<br />

of left side occlusion after<br />

treatment<br />

(Fig. 15) Maxillary models before and after orthodontic phase<br />

of treatment<br />

is creating proper relationships inside TMJ, subsequently<br />

eliminating the majority of TMJ issues.<br />

a dentofacial orthopedics approach regardless of age<br />

of the patient. The changes undergone by patient’s<br />

faces, the size of the jaws and the occlusion and teeth<br />

position cannot be explained by simple tooth movement<br />

but rather by response of the alveolar bone as a<br />

“whole”. Orthopedic changes in patient’s jaws and<br />

their relationships are generally responsible for overall<br />

improvement in facial appearance, correlations of the<br />

condyles and discs inside TMJ and the creation of much<br />

better groundwork for subsequent restorative procedures.<br />

The scientific evidence for the new dentofacial orthopedic<br />

approach is coming from work of Melsen, 9,10 and<br />

Cacciafesta, 11 who advocate that the dentoalveolar<br />

complex is much more malleable than previously believed.<br />

Michael O. Williams and Neal C. Murphy have introduced<br />

the concept of “whole bone” perspective to the alveolar<br />

bone response to continuous low orthopedic force. 12<br />

The cases presented in this article show that the<br />

remodeling and redevelopment of the patient’s facial<br />

and dentoalveolar structures can be performed using<br />

(Fig. 19) Patient’s O. CT scan: maxillary transverse view after<br />

treatment<br />

<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011| 29 |


Patient O. from case 1 has undergone CT scan examinations<br />

several months after the completion of the treatment. The<br />

goal of this research was to evaluate the long term effect of<br />

the completed interdisciplinary treatment on the condition<br />

and integrity of the alveolar bone and on the position and<br />

stability of the roots of the teeth within the bone. An image<br />

from this examination can be seen in fig. 19.<br />

The assessments of this and other images for this patient<br />

are consistent with the picture of normal alveolar bone<br />

with roots of the teeth positioned proportionally within<br />

the boundaries of the bone. There is no visible damage,<br />

dehiscences or fenestrations in the buccal alveolar plate and<br />

no bone loss can be observed.<br />

These CT scans illustrate the “whole bone” remodeling<br />

response to successfully performed orthopedic and<br />

orthodontic treatment.<br />

Conclusion<br />

The addition of the orthodontic treatment to interdisciplinary<br />

approach to solve TMD can result in permanent resolution of<br />

the patient’s TMJ issues. The final outcome of this treatment<br />

results in much improved position inside TM joints, significant<br />

enhancement of the patient’s overall facial appearance,<br />

occlusion, function and esthetic aspects of the smile. This<br />

treatment philosophy gives the dentist an opportunity to<br />

assess patients in a different way. The ensuing orthodontic<br />

treatment with special attention paid to dentofacial<br />

orthopedics allows for the remodeling of a patient’s alveolar<br />

bone and whole dentoalveolar complex. The bone movement<br />

creates a proper orthopedic relationship between the jaws<br />

with stable results and healthier TMJ. The implementation<br />

of this phase of the treatment places teeth and jaws in the<br />

position that dramatically improves the dentist’s ability<br />

to perform its restorative part. The overall results of the<br />

treatment are elimination of the majority of TMJ problems,<br />

much improved facial appearance, youthful look and proper<br />

occlusion allowing for better patient’s functional ability and<br />

esthetically attractive smile.<br />

References<br />

1. LeResche L. Epidemiology of temporomandibular disorders: implications for the<br />

investigation of etiologic factors. Crit Rev Oral Biol Med. 1997;8:291-305.<br />

2. Luter F. TMD and occlusion part I. Damned if we do? Occlusion: the interface<br />

of dentistry and orthodontics. British <strong>Dental</strong> <strong>Journal</strong>. 2007;202:E2.<br />

3. Luter F, Layton S, McDonald F. Orthodontics for treating temporomandibular<br />

joint(TMJ) disorders (Review). 2010 The Cochrane Collaboration.<br />

4. Wyatt W.E. Preventing adverse effects on the temporomandibular joint through<br />

orthodontic treatment. Am J Orthod Dentofacial Orthop. 1987;91:493-9.<br />

5. Capurso U, Marni I. Orthodontic treatment of TMJ disc displacement with<br />

pain: an 18 year follow-up. Prog Orthod. 2007;8(2):240-50.<br />

6. Dennis R. Brenkert. Orthodontic treatment for the TMJ patient following splint<br />

therapy to stabilize a displaced disk(s): a systemized approach. Part I, TMJ<br />

orthodontic diagnosis. Cranio: The <strong>Journal</strong> of Craniomandibular Practice.<br />

28.3 (July 2010) p.193.<br />

7. Dennis R. Brenkert. Orthodontic treatment for the TMJ patient following<br />

splint therapy to stabilize a displaced disk(s): a systemized approach. Part II.<br />

Cranio: The <strong>Journal</strong> of Craniomandibular Practice. 28.4 (Oct. 2010) p.260.<br />

8. Desteno C V, et al.: Phase II rehabilitation of the temporomandibular joint<br />

dysfunction patient. Clin Prey Dent. 1989; 11(5):29-32.<br />

9. Birte Melsen. Biological reaction of alveolar bone to orthodontic tooth<br />

movement. The Angle orthodontist. 1999;69(2):151-6.<br />

10. Birte Melsen. Tissue reaction to orthodontic tooth movement - a new<br />

paradigm. European <strong>Journal</strong> of Orthodontics. 2001;23:671-81.<br />

11. Cacciafesta V. Dr. Birte Melsen on adult orthodontic treatment. J Clin<br />

Orthod. 2006;12:703-16.<br />

12. Michael O. Williams and Neal C. Murphy. Beyond the Ligament: A Whole-<br />

Bone Periodontal View of Dentofacial Orthopedics and Falsification of<br />

Universal Alveolar Immutability. Seminars in Orthodontics, Vol. 14, No 4<br />

(December), 2008;246-59.<br />

| 30 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011


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Outcomes Following Zygomatic<br />

Complex Fractures<br />

A Retrospective Study<br />

Majed Hani Khreisat<br />

BDS, MSc, JBO<br />

• MSc UK<br />

• JBO in Oral & Maxillofacial<br />

surgery, Amman - Jordan<br />

majed_khreisat@hotmail.com<br />

Abstract<br />

Purpose: This is a descriptive analytic study evaluated the cause, type, incidence,<br />

complications and treatment modality of zygomatic complex fractures at Manchester<br />

Royal Infirmary in Manchester, United Kingdom over a period of six months from 10-1-<br />

2005 to 20-7-2005.<br />

Patients and Methods: This study was undertaken to investigate the outcomes following<br />

zygomatic complex fractures in the unit of Oral and Maxillofacial Surgery at Manchester<br />

Royal Infirmary, over a six month period. Information for the study was gathered from<br />

patient records and a self-administrated patient questionnaire over a period of six months<br />

from 10-1-2005 to 20-7-2005. Fifty patients, who had sustained zygomatic-complex<br />

fractures were examined clinically, radiographicaly, and also underwent orthoptic<br />

investigations. Ethical approval was gained from the local research ethics committee.<br />

Results: The age of the patients ranged from 17 to 75 years. Seventy six percent of<br />

patients were male, and the mean and median ages were (32.3; 30.5) for males,<br />

and (33.4; 30.5) for females respectively. The male to female ratio was 3:1. Assault<br />

was the major cause of zygomatic complex fractures, (35 patients [70%]), followed by<br />

sport (8 patients [16%]). The majority of assault cases were in the 24-28 age groups.<br />

The vast majority of patients (68.0%) with zygomatic complex injuries presented within<br />

24 of their injury to the Accident & Emergency department, 15 cases (30%) presented<br />

between 1-3 days, and only one case (2%) attended between 4-7 days. Patients<br />

presented with circum-orbital ecchymosis as the most common sign, which was evident<br />

in 41 patients (82%). Infra-orbital paraesthesia was present in 38 patients (76%). Subconjunctival<br />

haemorrhage was seen in 33 patients (66%). Flattening of the cheek was<br />

present in 28 patients (56%). Epistaxis occurred in 23 (46%) of patients. Step deformity<br />

of the infra-orbital rim and deformity at Z-F suture were present in 36%, and 38%<br />

of patients, respectively. Thirty-six percent of patients had limitation of mandibular<br />

movements. Nine cases out of fifty (18%) presented with diplopia. Surgical treatment<br />

was provided for 36 patients (72%). Fourteen (28%) of patient were observed and<br />

treated conservatively. Closed reduction was performed for 42% of the treatment group<br />

and 19 fractures were reduced by the Gillies temporal approach and 2 fractures via a<br />

buccal approach; 30% of the fractures were reduced by open reduction and internal<br />

fixation and the orbital floor was investigated in 15 patients. Ten patients required<br />

orbital floor reconstruction and the preferred alloplastic material in this patient group<br />

was Vicryl mesh (40%). The most common incision to explore the orbital floor is the<br />

subciliary incision which was utilised in 9 patients the lateral brow incision was utilised<br />

in 4 patients (27%). And two patients (11.8%) had the trans-conjunctival approach.<br />

Statistically analysis revealed a significant difference between assault as the aetiology<br />

and the types of zygoma fracture (p


Introduction<br />

Zygomatic or Malar bone fractures are (2 nd most<br />

common) after nasal bone fractures among facial<br />

skeletal Injures. 1,2 The high incidence of these fractures<br />

may probably be attributed to the fact that Zygoma’s<br />

occupy an anatomically prominent position within the<br />

facial skeleton which frequently exposes it to traumatic<br />

forces. The prominent convex shape of the zygoma<br />

makes it vulnerable to traumatic injury. Even minimally<br />

displaced zygomatic-complex fractures can result in<br />

functional and aesthetic deformities. All traumas to the<br />

face, particularly above the level of the mouth, require<br />

a careful ocular examination including an estimation<br />

of visual acuity of each eye, and zygomatic-complex<br />

fractures are frequently complicated by injury to the orbit<br />

and eye adnexae, which are the most serious negative<br />

outcomes of zygomatic complex fractures. 3<br />

Patients and Methods<br />

Information for the study was gathered from patient<br />

records and a self-administrated patient questionnaire<br />

over a period of six months from 10-1-2005 to 20-<br />

7-2005. Fifty patients, who had sustained zygomaticcomplex<br />

fractures were examined clinically, radiographicaly,<br />

and also underwent orthoptic investigations.<br />

A written informed consent was obtained from the<br />

patient or attendant. The treatment of fractures was done<br />

by standard methods of reduction and fixation. Data<br />

was analyzed in statistical program for social sciences<br />

(SPSS) version 11.0. The frequency and percentage<br />

was computed for qualitative variables, like gender,<br />

etiologies, pattern and management modalities. Mean±<br />

standard deviation was computed for qualitative<br />

Variables, like age. Ethical approval was gained from the<br />

local research ethics.<br />

Results<br />

The results of this study were described in sequence of<br />

the objectives. Detailed description of separate results is<br />

shown in figures and tables.<br />

Discussion<br />

The zygomatic complex gives the cheek prominence, and<br />

it is the second most common mid-facial bone fractured<br />

after the nasal bone and, overall, represents 13% of<br />

craniofacial fractures. 4 Zygomatic complex fractures are<br />

almost always associated with fractures of the floor of the<br />

orbit. Typically, a fracture line extends from the inferior<br />

orbital fissure antero-medially along the orbital process<br />

of the maxilla, toward the infra-orbital rim.<br />

Fifty patients attended with zygomatic complex fractures<br />

over a six months period. The age of the patients ranged<br />

from 17 to 75 years. Seventy six percent of patients were<br />

male, and the mean and median ages were (32.3; 30.5)<br />

for males, and (33.4; 30.5) for females respectively. The<br />

male to female ratio was 3:1 as shown in table 1.<br />

Age<br />

Range<br />

Number<br />

of patient<br />

Male Female Total<br />

%<br />

Number<br />

of patient<br />

Assault was the major cause of zygomatic complex<br />

fractures, (35 patients [70%]), and the second most<br />

common cause was sport (8 patients [16%]). The<br />

majority of assault cases were in the 24-28 age groups.<br />

This corresponds with results in comparable studies 5-8 as<br />

shown in figure 1.<br />

Of the patients who required surgical intervention,<br />

8 (16%) were treated within 4-7 days and 19 (38%)<br />

in 8-13 days. In 23 patients (46%) surgery was not<br />

undertaken until 14 days. The reasons for this may<br />

include allowing the oedema and ecchymosis to settle<br />

and for the general condition of the patients to improve 9<br />

as shown in figure 2.<br />

We also evaluated the site of injury to whether it was<br />

left-side or right, and compared this to aetiology of the<br />

fracture. There was a statistically significant difference<br />

between aetiologies and sites of injuries with left side<br />

%<br />

Total<br />

number of<br />

patient<br />

14-18 4 8 0 0 4 8<br />

19-23 2 4 2 4 4 8<br />

24-28 12 24 4 8 16 32<br />

29-33 5 10 1 2 6 12<br />

34-38 6 12 2 4 8 16<br />

39-43 4 8 1 2 5 10<br />

44-48 3 6 0 0 3 6<br />

Over<br />

48<br />

2 4 2 4 4 8<br />

Total 38 76 12 24 50 100<br />

(Table 1) Age and sex of study group<br />

16<br />

14<br />

12<br />

10<br />

8<br />

6<br />

4<br />

2<br />

0<br />

14-18<br />

19-23<br />

24-28<br />

29-33<br />

34-38<br />

39-43<br />

(Fig. 1) Aetiology by age distribution<br />

44-48<br />

Over 48<br />

%<br />

Total<br />

Others<br />

Industrial<br />

Road Trafic<br />

Accident<br />

Sport<br />

Fall<br />

Assault<br />

<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011| 33 |


Time from presentation to treatment<br />

4-7 days<br />

8-13 days<br />

14+ days<br />

8-13 days<br />

38.00%<br />

n=19<br />

Number of cases<br />

20<br />

18<br />

16<br />

14<br />

12<br />

10<br />

8<br />

6<br />

4-7 days<br />

16.00%<br />

n=8<br />

14+<br />

days<br />

46.00%<br />

n=23<br />

4<br />

2<br />

0<br />

Fracture of zygomatt<br />

No significant displ<br />

Comminuted fractures<br />

Orbital wall fracture<br />

Displacement en bloc<br />

Rotation around Ion<br />

Rotation around vert<br />

(Fig. 2) Time from presentation to treatment (Time of Surgical<br />

intervention)<br />

(Fig. 4) Types of zygomatic-complex fractures<br />

40<br />

50<br />

45<br />

30<br />

32<br />

40<br />

35<br />

Number of of cases<br />

20<br />

10<br />

5<br />

0 3 3 3 2<br />

Assault Fall Sport RTA Other<br />

Aetiology<br />

Site of the fracture<br />

Site of the fracture<br />

Left<br />

Right<br />

Aetiology<br />

(Fig. 3) Site of zygomatic complex fracture according to aetiology<br />

Frequency<br />

30<br />

25<br />

20<br />

15<br />

10<br />

5<br />

0<br />

Oedema<br />

Circum-orbital ecchymosis<br />

Subconjunctival haemorrhage<br />

Flattening of the cheek<br />

Limitation of mandibular<br />

movement<br />

Step deformity (infra-orbital<br />

rim)<br />

Deformity of Z-F suture<br />

Infra-orbital paraesthesia<br />

Diplopia<br />

Limitation of Orbial movement<br />

Epistaxis<br />

being commonly injured due to assault (32 patients,<br />

64%) (p


25<br />

20<br />

Orbital floor exploration<br />

Subciliary incision<br />

Transconjuctival incision<br />

Lateral brow incision<br />

15<br />

10<br />

No Treatment<br />

Lateral Brow Incision<br />

Transconjunctival Approach<br />

Subciliary Approach<br />

Both Treatments (IOR & ZFS)<br />

Zygomatico-Frontal Suture<br />

Infra-orbital Rim<br />

Buccal Sulcus Approach<br />

Gillis Temporal Approach<br />

Lateral brow<br />

incision<br />

27%<br />

n=4<br />

Subciliary<br />

incision<br />

0<br />

Closed Reduction<br />

Open Reduction<br />

& Internal fixation<br />

Orbital floor<br />

Explanation<br />

Waiting & Observation<br />

Transconjuctival<br />

incision 13%<br />

n=2<br />

60%<br />

n=9<br />

(Fig. 6) Surgical approaches to zygomatic-complex fractures<br />

(IOR: Infra-Orbital rim; ZFS: Zygomatic-frontal Suture)<br />

reported by. 19 Thirty-six percent of patients had limitation<br />

of mandibular movements, which is similar to finding<br />

in other comparable studies. Nine cases out of fifty<br />

(18%) presented with diplo. 20 Studies in the literature<br />

report similar figures. 21,22 Some studies reported a lower<br />

incidence 23 as shown in figure 5.<br />

The treatment of zygomatic-complex fractures varies from<br />

surgeon to surgeon and depends on the type of fracture<br />

and given circumstance. Surgical treatment was provided<br />

for 36 patients (72%). Fourteen (28%) of patient were<br />

observed and treated conservatively. Forty-two percent of<br />

patients underwent closed reduction by both extra oral<br />

(Gillies temporal approach) and intra-oral approach<br />

(Buccal sulcus approach). This surgical approach is<br />

comparable and well reported in several studies. 24<br />

Orbital floor exploration was undertaken in 15 (30%) of<br />

patient and our figures compared well with 25,26 who have<br />

relatively similar figures of 41.2% and 43.6% respectively.<br />

Open reduction and internal fixation was undertaken in<br />

15 cases (30%). Previously wiring at the infra-orbital rim<br />

and zygomatico-frontal suture was undertaken but with<br />

advent of plating, the majority of fractures are now with<br />

titanium plates as shown in figure 6.<br />

It was stated that adequate soft tissue access is of<br />

paramount importance for orbital floor exploration,<br />

and exposure of the fracture to stable bone for proper<br />

anatomic reduction. 27 The most common incision to<br />

explore the orbital floor is the subciliary incision which<br />

was utilised in 9 patients (60%). 28, 29 stated similar figures<br />

of 42% and 47% respectively. Some surgeons prefer the<br />

lateral brow incision as this avoid fixation at the infraorbital<br />

rim which is thin and sometimes less suitable<br />

for plating. The lateral brow incision is utilised to plate<br />

at the zygomatic-frontal suture and also for orbital<br />

floor exploration. In our study group the lateral brow<br />

incision was utilised in 4 patients (27%). Two patients<br />

(11.8%) had the trans-conjunctival approach. The most<br />

commonly stated criticism of this technique is the lack of<br />

(Fig. 7) Orbital floor exploration in zygomatic complex fracture<br />

Type of fixation<br />

PDS<br />

Medpore<br />

Vicrly mesh<br />

None<br />

None<br />

33%<br />

n=5<br />

(Fig. 8) Repair of orbital floor defects<br />

PDS<br />

20%<br />

n=3<br />

Medpore<br />

7%<br />

n=1<br />

Vicrly mesh<br />

40%<br />

n=6<br />

access to the operative field, although it provides good<br />

cosmetic results with no visible scar but can carry a low<br />

incidence of postoperative ectropion. 30 None of the<br />

patients presented with early complication as a result of<br />

the surgical approaches utilised as shown in figure 7.<br />

Several of materials have been employed by<br />

the surgeons in Manchester Royal Infirmary for<br />

reconstruction of orbital floor defects. The convenience,<br />

stability, lack of donor site morbidity, and reduced<br />

anaesthetic and operating time has persuaded many<br />

surgeons to use alloplastic materials for reconstruction<br />

of orbital floor defects. The following materials were<br />

utilised for reconstruction of the orbital floor: Vicryl mesh<br />

(6 patients, 40%): PDS was utilised in 3 patients (20%)<br />

and one patient had Medpore placed in the defect (7%).<br />

For 5 patients (33%), the orbital defect was not repaired<br />

following exploration. The early or late complications of<br />

alloplastic implant materials include infection, extrusion,<br />

migration, residual diplopia, lower eyelid oedema,<br />

ectropion and tissue reaction. 31 None of the latter<br />

complications were noted in patients in this study as<br />

shown in figure 8.<br />

<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011| 35 |


60<br />

55<br />

50<br />

45<br />

40<br />

35<br />

30<br />

Frequency 25<br />

Percentage 20<br />

15<br />

10<br />

5<br />

0<br />

Asymmetry<br />

(Cheek Flattening)<br />

Limitation mandibular<br />

movement<br />

Deformity of<br />

orbital rim<br />

Deformity of<br />

Z-F Suture<br />

Infra-orbital<br />

paraesthesia<br />

(Fig. 9) Persistent complications of zygomatic-complex fractures<br />

The most frequent complication of zygomatic complex<br />

fractures was infra-orbital paraesthesia in 27 cases<br />

(54%). This was followed by 3 cases (6%) in asymmetry<br />

(cheek flattening). Two cases (4%) had limitation of<br />

mandibular movement. Persistent diplopia and changes<br />

of visual acuity was seen in one case (2%) (fig. 9).<br />

Conclusion<br />

This study presents information that can be<br />

valuable in describing the pattern and spectrum<br />

of zygomaticomaxillary complex fractures in local<br />

population. Since the assault, the leading cause of facial<br />

trauma, are usually associated with greater severity of<br />

injuries, treatment approach needs to be comparatively<br />

aggressive e.g. exposure of fracture sites and internal<br />

fixations, for better aesthetic and functional restoration.<br />

However, the four most important considerations<br />

in treating zygomatic complex fractures are proper<br />

reduction, adequate stabilization, adequate orbital<br />

floor reconstruction (when necessary), and adequate<br />

handling/positioning of periorbital soft tissue which will<br />

provides the most accurate and satisfactory postoperative<br />

results. Variance in treatment may exist because therapy<br />

depends upon the type and severity of fracture, the time<br />

since injury, and the surgeon’s personal experience. The<br />

prognosis of zygomatic complex fractures is influenced<br />

by delay between time of injury and treatment. The<br />

timing of surgery is dependent on the general health<br />

of the patient and the presenting signs and symptoms.<br />

Ideally management of zygomatic complex injuries<br />

should be undertaken after residual oedema has<br />

subsided and a thorough pre-operative ophthalmic<br />

assessment has been performed. As revealed in this<br />

study, only 72% of patients received surgical intervention<br />

to treat their injury.<br />

References<br />

1. Hollows P, D’Sa A, McAndrew PG. Life-threatening heamorrhage<br />

after elevation of a fractured zygoma. Br J Oral Maxillofac Surg.<br />

1999;37:448-50.<br />

2. Israr N, Shah AA. Retrospective study of zygomatic complex<br />

fractures in Sheffield England. Pak Oral Dent J. 2001;21:50-9.<br />

Diplopia<br />

Loss of<br />

Visual Acuity<br />

3. Mackinnon CA, David DJ, Cooter RD. Blindness and sever visual<br />

impairment in facial fractures: An 11-year review. Br J Plast Surg.<br />

2002;55:1-7.<br />

4. Tadji Armin MB, Kimble Frank W. Fractured Zygomas. ANS. J. Surg.<br />

2003;73:49-54.<br />

5. Rowe, N.L, Killey, H.C. Fractures of the facial skeleton. Edinburgh,<br />

E & S. Livingston. Ed.1. 1955;328-59.<br />

6. Haider Z. Fractures of the zygomatic complex in the south-east<br />

region of Scotland. Br. J. Oral. Surg. 1977;15:265-7.<br />

7. Balle V, Christensen PH, Greisen O, Jorgensen PS. Treatment<br />

of zygomatic fractures: a follow-up study of 105 patients.<br />

Otolaryngolog. 1982;7:411-6.<br />

8. Telfer MR, Jones GM, Shepherd JP (1991).Trends in the aetiology of<br />

maxillofacial fractures in United Kingdom. (1977-1987). British. J.<br />

Oral & Max-Fac. Surg. 1982;29:250-5.<br />

9. Ogden GR. The Gillies method for fractured zygoma: an analysis<br />

of 105 cases. J. Oral. Max-Fac.Surg. 1991;49:23-5.<br />

10. Ellis E 3rd, el-Attar A, Moos KF. An analysis of 2,067 cases<br />

of zygomatic orbital fractures. J. Oral Max-Fac. Surg.<br />

1985;43(6):417-28.<br />

11. Cramer, L.Tooze, F., Lerman, S. Blow-out fractures of orbit. Br. J.<br />

Plast. Surg. 1965;18:171-9.<br />

12. Kristeensen S, Tvetrs K. Zygomati Fractures: Classsification and<br />

Complications. Clin. Otolarng. 1986;11:123-9.<br />

13. Larsen OD, Thomsen M (): Zygomatic Fractures. II. A Followup<br />

study of 137 patients. Scand. J. Plast. Reconstr. Surg.<br />

1978;12(1):59-63.<br />

14. Hollier, Larry H, M.D, Thornton James, M.D; Pazimiono, Pat M.D.;<br />

Stal, Samuel M.D. The Management of Orbito-zygomatic fractures.<br />

Plast Reconstr. Surgery. 2003;111(7):2386-93.<br />

15. Wiesenbaugh Josph M. Diagnostic evaluation of zygomatic<br />

complex fractures. <strong>Journal</strong> of oral surgery. 1970;28:204-8.<br />

16. Kaasted E, Freng A.Zygomatico-maxillary fractures. J.<br />

Craniomaxillo-facial Surgery. 1989;17:210.<br />

17. Carr RM, Mathog RH. Early and delayed repair of orbito-zygomatic<br />

fractures. J. Oral. Max-Fac. Surg. 1997;55:253-9.<br />

18. Zachariades N, Papavassiliou D, Papadenetrion I. The alteration<br />

in sensitivity of the infraorbital nerve following of the zygomatic<br />

maxillary complex. <strong>Journal</strong> Cranio-Max-Fac. Surg, 18:315-318.<br />

19. Kovacs and M. Ghahremani (2001). Minimization of zygomatic<br />

complex fracture treatment. Int <strong>Journal</strong>. Oral Max-Fac Surgery.<br />

1990;30(5):380-3.<br />

20. Covington DS, Wainwright. DJ, Teichgraeber JF et al. Changing<br />

patterns in the epidemiology and treatment of zygoma fractures:<br />

10-year review. <strong>Journal</strong> of Trauma. 1994;37:243.<br />

21. Knight, J.S. & North, J.F. The classification of Malar Fractures: An<br />

analysis of Displacement as a Guide to Treatment. Br. J. Plast Surg.<br />

1961;13:325-39.<br />

22. Folkestad Lena, MD, Granstrom Gosta, MD. A prospective study of<br />

orbital fracture squeals after change of surgical routines. J. Oral.<br />

Max-Fac, Surg. 2003;61:1038-44.<br />

23. Barclay TL. Diplopia in association with fractures involving the<br />

zygomatic bone. Br. J. Plast Surg. 1958;11:47.<br />

24. Zing M, Laedrach K, Chen J et al. Classification and treatment of<br />

zygomatic fractures: A review of 1,025 cases. J. Oral. Max-Fac.<br />

Surg. 1992;50:778.<br />

25. Chen CT. Chen YR. Endoscopically assisted repair of orbital floor<br />

fractures. Plast Reconstr. Surg. 2001;108:2011-8.<br />

26. Manson PN, Iliff N, Bradely R. Trapdoor fractures of the orbit in<br />

pediatric population. Plast Reconstr. Surg. 2002;109:490-5.<br />

27. Manolidis S, Weeks BH, Kirby M, M. Hollier. Classification and<br />

surgical management of orbital fractures: Experience with 111<br />

orbital reconstru- ctions. J. Craniofacial Surg. 2002;13: 726-37.<br />

28. Wray RC, Holtman B, Ribaudo JM, et al. A comparisons of<br />

conjunctival and subciliary incisions for orbital fractures.Br. J. Plast.<br />

Surg. 1977;30(2):142-5.<br />

29. Pospisil OA, Fernando TD (1984). Review of the lower<br />

blepharoplasty incision as a surgical approach to zygomaticoorbital<br />

fractures Br. N J. Oral. Max-Fac.<br />

30. Holtman B, Wray RC, Little G. A randomized comparison of four<br />

incisions for orbital fractures. Plast Reconstr. Surg. 1981;67:731-5.<br />

31. Jordan DR, Allen LH, White J, Harvey J, Pashby R, Esmaeli B.<br />

Intervention within days for some orbital floor fractures: the whiteeyed<br />

blow-out. Opthal. Plast Reconstr Surg. 1998;14:379-90.<br />

| 36 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011


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The Diagnosis and Management of<br />

Impacted Maxillary Canines<br />

Eyas Abuhijleh<br />

BDS, PhD<br />

• Specialist Orthodontist and<br />

Assistant Professor, Tawam<br />

Hospital, <strong>Dental</strong> Center<br />

Al Ain - UAE<br />

eabuhijleh@tawamhospital.ae<br />

Dalal Masri<br />

BDS<br />

• General <strong>Dental</strong> Practitioner<br />

Tawam Hospital, <strong>Dental</strong><br />

Center, Al Ain - UAE<br />

dmasri@tawamhospital.ae<br />

Nadia Farawana<br />

MDSc<br />

• German Board of<br />

Orthodontics, Tawam<br />

Hospital <strong>Dental</strong> Center,<br />

Al Ain - UAE<br />

nfarawana@tawamhospital.ae<br />

Mariam Nmari<br />

DDS<br />

• General <strong>Dental</strong> Practitioner<br />

Yas Medical Center<br />

Al Buraimi - Oman<br />

mariam.nmari@yahoo.com<br />

Abstract<br />

General dental practitioners and orthodontists will commonly encounter this problem<br />

(impacted maxillary canines) and need to be fully aware of managing this situation.<br />

Failure to diagnose and manage the ectopic upper canine efficiently can result in more<br />

complex remedial treatment becoming necessary, which would be costly in terms of<br />

clinical time for both the practitioner and patient. There is also the risk of damage to<br />

the adjacent teeth which may lead to their loss and eventually to costly litigation claims.<br />

The aims of this article are to:<br />

1. Present evidence based recommendations to assist <strong>Dental</strong> Clinicians (<strong>Dental</strong><br />

Surgeon, Orthodontist, Pediatric <strong>Dental</strong> Specialist, Oral Surgeon) in the timely<br />

detection and management of the ectopic maxillary canine.<br />

2. Detect and manage impacted maxillary canines early.<br />

3. Learn the complications associated with an impacted maxillary canine.<br />

Keywords: Impacted canines, Surgical exposure, Orthodontic treatment.<br />

Introduction<br />

Canines play a vital role in facial appearance, dental esthetics, arch development and<br />

functional occlusion. Canine impaction is a common occurrence, because it develops<br />

deep within the maxilla and has the longest path to travel compared with any other tooth<br />

in the oral cavity. It is only with interdisciplinary care of general dentists and specialists by<br />

early detection, timely interception, and well-managed surgical and orthodontic treatment<br />

that impacted maxillary canines can be erupted and guided to an appropriate location in<br />

the dental arch. 2<br />

Diagnosis<br />

Clinical signs<br />

• Over-retention of the primary canine. 2<br />

• Delayed eruption of the permanent canine. 2<br />

• Absence of a labial bulge in a 10- or 11- year-old patient. 2,3<br />

• Presence of a palatal bulge. 2<br />

• Distal crown tipping of the lateral incisor. 2,3<br />

Radiographic investigation<br />

The examination usually involves taking two radiographs and using the principle of<br />

horizontal or vertical parallax, the horizontal parallax technique being the more reliable<br />

in localizing impacted canines: 1<br />

1. Horizontal parallax involves taking either:<br />

• Two periapicals with different angulations and follow the (SLOB = same lingual<br />

opposite buccal) rule 1-4 or<br />

• An upper occlusal and a periapical.<br />

| 40 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011


Flow chart of the sequence of management of impacted maxillary canines<br />

Clinical Examination at Age 10<br />

Absence of Buccal Bulge and Presence of Palatal Bulge<br />

Radiographic Localization<br />

Line of Arch<br />

Buccally Ectopic<br />

Palatally Ectopic<br />

Monitor Eruption<br />

of Canine / Space<br />

Creation<br />

Monitor Eruption of Canine<br />

Extract Deciduous Canines / Space Creation<br />

Canine not Erupting in 1 year<br />

Radiographic Localization: Beneficial Change in Position<br />

YES<br />

NO<br />

Canine Buccally or Palatally Impacted<br />

Surgical Exposure & Orthodontic Alignment<br />

NO<br />

Surgical Removal or Auto-Transplantation<br />

NO<br />

No Treatment and continuous Monitoring<br />

2. Vertical parallax involves taking either:<br />

• An upper occlusal (70–75°) and an<br />

orthopantomogram (OPG) or<br />

• A periapical and an orthopantomogram (OPG). 1,4<br />

3. Advanced three-dimensional (3D) imaging<br />

techniques: Cone-beam computed tomography<br />

(CBCT) 1-4<br />

Radiographic features<br />

• Either non-vertical or no resorption of the deciduous<br />

canine root. 3<br />

• Canine crown overlapping adjacent incisor roots. 3<br />

• Resorption of adjacent incisor roots. 2,3<br />

• Magnification of the permanent maxillary canine<br />

crown on a panoramic radiograph. 3<br />

Management<br />

Interceptive treatment by extraction of the<br />

deciduous canine<br />

• The patient should be aged between 10-13 years. 1,4<br />

• Better results are achieved in the absence of<br />

crowding. 1,4<br />

• Position of the canine in the dental arch and in<br />

its relationship to the adjacent lateral decides the<br />

outcome of the interceptive treatment. 1,4<br />

• The need to maintain space (or even create additional<br />

space) requires consideration. 1,4<br />

• If radiographic examination reveals no improvement<br />

in the impacted canine’s position 12 months after<br />

extraction of the deciduous canine, alternative<br />

treatment should be considered. 1,4<br />

Surgical exposure and orthodontic alignment<br />

• The patient should be well motivated and willing to<br />

wear fixed orthodontic appliances. 1,4<br />

• The patient should have good medical and oral health,<br />

and maintain proper oral hygiene. 1,4<br />

• The patient is considered to be unsuitable for<br />

interceptive treatment. 1,4<br />

• The degree of malposition of the impacted canine<br />

should not be too great to preclude orthodontic<br />

alignment. 1,4<br />

• Exposure and alignment of the impacted canine is<br />

indicated in cases when severe root resorption of an<br />

incisor tooth has occurred necessitating its extraction. 4<br />

• The optimal time for surgical exposure and orthodontic<br />

alignment is during adolescence. 4<br />

• Open communication between the orthodontist and<br />

oral surgeon is essential for the choice of appropriate<br />

surgical techniques.<br />

• Careful selection of surgical and orthodontic<br />

techniques is essential for the successful alignment of<br />

impacted maxillary canines.<br />

• Measured orthodontic forces in a favorable direction<br />

leads to successful alignment.<br />

Surgical removal of the palatally impacted<br />

permanent canine<br />

• This treatment option should be considered if the<br />

patient declines active treatment and/or is happy with<br />

their dental appearance. 1,4<br />

• Surgical removal of the impacted canine should be<br />

considered if there is radiographic evidence of early<br />

root resorption of the adjacent incisor. 1,4<br />

<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011| 41 |


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• The best results are achieved if there is good contact<br />

between the lateral incisor and first premolar. 1,4<br />

• It is indicated in patients willing to undergo<br />

orthodontic treatment to substitute the first premolar<br />

for the canine. 1,4<br />

• The possible risk of damaging the roots of adjacent<br />

teeth during the surgical removal of the impacted<br />

canine should be assessed and discussed with the<br />

patient. 1<br />

Auto-transplantation<br />

• This treatment option should be considered<br />

if the patient is unwilling to wear orthodontic<br />

appliances. 1,4<br />

• Transplantation is indicated where interceptive<br />

extraction of the deciduous canine has failed or<br />

is unsuitable, and exposure and alignment of the<br />

impacted canine is not possible. 1,4<br />

• There should be adequate space available for the<br />

canine and sufficient alveolar bone to accept the<br />

transplanted tooth. 1,4<br />

• The prognosis should be good if the canine to be<br />

transplanted shows no evidence of ankylosis. 1<br />

• The best results are achieved if the impacted canine<br />

can be removed atraumatically. 1,4<br />

• Depending on the stage of root formation (more<br />

than 3/4 of the root formed) the transplanted canine<br />

may require root canal therapy to be commenced<br />

within ten days following transplantation. 1<br />

No treatment and continuous monitoring<br />

• The patient does not want treatment or is happy with<br />

their dental appearance. 1,4<br />

• There should be no evidence of root resorption of<br />

adjacent teeth or other pathology. 1<br />

• There should be good contact between the lateral<br />

incisor and first premolar or the deciduous canine<br />

should have a good prognosis. 1,4<br />

• Severely displaced palatally impacted canines with no<br />

evidence of pathology may be left in-situ, particularly if<br />

the canine is remote from the dentition. 1<br />

• Impacted canines left in-situ necessitate<br />

radiographic monitoring to check for cystic changes<br />

or root resorption. 1,4<br />

• Regular review to ensure that the impacted canine<br />

does not pose any risk to the adjacent structures. 1,4<br />

References<br />

1. Management of the palatally ectopic maxillary canine, Husain<br />

J. et al., Publication of the Royal College of Surgeons, Faculty of<br />

<strong>Dental</strong> Surgery, online publication, updated March 2010.<br />

2. A review of the diagnosis and management of impacted<br />

maxillary canines, Bedoya M. and Park J., The <strong>Journal</strong> of the<br />

American <strong>Dental</strong> association (JADA). 2009;140:12:1485-93.<br />

3. Managing the maxillary canine: 1. Diagnosis, localization<br />

and interceptive treatment, McIntyre G., Orthodontic Update,<br />

January 2008;1:7-15.<br />

4. Clinical Practice Guidelines, The management of the palatally<br />

ectopic canine, Ministry of Health Malaysia, September 2004.<br />

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Adhesion of Candida Albicans to Denture<br />

Base and Denture Liners with Different<br />

Surface Roughness<br />

An In-vitro Study<br />

Zahraa Nazar Al-Wahab<br />

BDS, MSc<br />

• Lecturer, Department of<br />

<strong>Dental</strong> Technologies, College<br />

of Health and Medical<br />

Technologies, Foundation of<br />

Technical Education<br />

Baghdad, Iraq<br />

zahraawahab@yahoo.com<br />

Abstract<br />

This study investigated adherence of Candida albicans to denture base acrylic resins<br />

and denture soft liners with varying surface roughness.<br />

Materials and Methods: Two denture base acrylic resins (heat cured resin and cold<br />

cured resin) and two commercial soft liners (one is heat polymerized acrylic resin<br />

based and one is room temperature polymerized silicon based) having dimensions of<br />

10X10X1.5mm for each specimen. Each material was divided into two groups: one is<br />

processed against glass slide surface and the other is processed against dental stone<br />

(10 samples for each group). Surface roughness measurements were made using a<br />

profilometer where a stylus traverses across the layer of the surface. Human saliva<br />

was collected from volunteers and the specimens were stored in human saliva which<br />

was contaminated with yeast suspension of approximately 106 Candida albicans per<br />

milliliter and incubated for 24hrs at 37C˚. After incubation, fixation of the attached<br />

cells was done by treating the specimens with 100% ethanol for 3s and left to dry in<br />

sterile plates. Specimens were stained using sterilized, fixated Methylene Blue stain for<br />

1min and subsequently evaluated under optical microscope (Olympus, Japan) at X400<br />

magnification. Visible measurement field was calculated in mm 2 and the obtained data<br />

were expressed in cell/mm 2 .<br />

Results: The materials processed against glass surface showed a very high significant<br />

difference in surface roughness values than those processed against dental stone<br />

surface (student t – test, P


(Table 1) Materials used in this study<br />

Type of Material Trade Name Manufacturer Batch Number<br />

Heat polymerized denture base acrylic resin Major base 2 (HC) Italy<br />

ISO 1567, type I class I ADA<br />

no.12<br />

Room temperature polymerized denture base acrylic resin Major repair 2 (CC) Italy<br />

ISO 1567, type II class I ADA<br />

no.12<br />

Heat-polymerized acrylic resin-based resilient liner<br />

Vertex Soft (V)<br />

Vertex-<strong>Dental</strong> BV, Zeist,<br />

The Netherlands<br />

100001<br />

Room temperature polymerized silicone-based resilient liner Mollosil (M)<br />

Detax, GmbH & Co. KG,<br />

Germany<br />

03008<br />

The presence of Candida albicans on the upper fitting<br />

surface of the denture is a major causative factor<br />

in denture-associated chronic atrophic candidosis<br />

(denture stomatitis), the most common form of oral<br />

candidosis. 2 Candida albicans is a dimorphic fungus that<br />

is commensal in the gastrointestinal and reproductive<br />

tracts of healthy individuals. Under certain predisposing<br />

conditions, Candida albicans can convert into a<br />

pathogen capable of causing a variety of oral infections<br />

including pseudomembranous candidiasis, erythematous<br />

candidiasis and hyperplastic candidiasis, as well as<br />

Candida-associated denture stomatitis, Candida<br />

associated angular cheilitis, rhomboid glossitis and<br />

chronic mucocutaneous candidiasis. 4<br />

Denture stomatitis is an erythematous pathogenic<br />

condition of the denture bearing mucosa and is mainly<br />

caused by microbial factors, especially Candida albicans. 5<br />

The etiology is multifactorial consisting of either ill-fitting<br />

prostheses leading to mechanical irritation or poor<br />

hygiene leading to chronic infection, regardless of the<br />

initiating process Candida ablicans is the main cause of<br />

fungal origin in denture stomatitis. 6<br />

The first step implicated in denture stomatitis is adherence<br />

of Candida to acrylic or to salivary pellicles adsorbed on<br />

the surface of dental prosthesis. This is considered the<br />

most important event in the ability of Candida albicans to<br />

colonize dentures in the mouth. 4 The aim of this study is<br />

to assess the ability of Candida albicans adherence to two<br />

types of acrylic resin and two types of soft lining materials<br />

with different surface roughness.<br />

Materials and Methods<br />

Two commercially available denture base acrylic resins<br />

were used, one is heat cured (HC) and the other is<br />

cold cured (CC). Two liners were used, one is heat<br />

polymerized acrylic resin based (V) and the other is room<br />

temperature polymerized silicone based (M). All of these<br />

materials were listed in Table 1.<br />

Preparation of the specimens<br />

Pink modeling wax forms (10X10X1.5) mm were<br />

punched from a sheet of wax. Stone was mixed<br />

according to the manufacturer’s instruction in the lower<br />

half of the flask. Two types of mold were prepared in<br />

such a manner that in the first type, one part of the mold<br />

was dental stone and the other is glass surface, while<br />

in the second type, both parts of the mold were dental<br />

stone. To produce the specimens against the glass,<br />

a glass microscope slide was pressed onto the stone<br />

mixture in the lower part of the flask. After the stone has<br />

set, wax specimens were placed on the top of the glass<br />

slide surface. The upper part of the flask was placed in<br />

position and the dental stone was poured over the wax<br />

specimens. The flasks were separated and boiled out,<br />

and the cover glass was degreased with liquid detergent.<br />

The surface of the investing dental stone was lubricated<br />

with separating media before packing of the materials.<br />

All the tested materials were processed according to the<br />

manufacturer’s instructions.<br />

Sample grouping<br />

HC1: Heat cured denture base acrylic resin processed<br />

against glass<br />

CC1: Cold cured denture base acrylic resin processed<br />

against glass<br />

V1: Heat polymerized acrylic resin-based resilient liner<br />

processed against glass<br />

M1: Room temperature polymerized silicone-based<br />

resilient liner processed against glass<br />

HC2: Heat cured denture base acrylic resin processed<br />

against dental stone<br />

CC2: Cold cured denture base acrylic resin processed<br />

against dental stone<br />

V2: Heat polymerized acrylic resin-based resilient liner<br />

processed against dental stone<br />

M2: Room temperature polymerized silicone-based<br />

resilient liner processed against dental stone<br />

Estimation of surface roughness of the specimens<br />

The surface roughness of the specimens was measured<br />

with profilometer (Talysurf 4, Taylor Hasbon, UK), where<br />

a stylus traverses across the layer of the surface. Three<br />

readings were taken for every specimens and the<br />

average was calculated. The average surface roughness<br />

values for all tested specimens are presented in Table 2.<br />

Methods of saliva collection<br />

Whole unstimulated saliva samples were collected and<br />

pooled from 5 healthy male volunteers to eliminate<br />

sample variation, 4 aged 18 – 22, (mean 20 years). The<br />

<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011| 47 |


(Table 2) Mean surface roughness values (Ra) and standard<br />

deviation (SD) of all tested groups (in µm)<br />

Mean and SD Group Mean ± SD Group<br />

2.5±0.253 HC2 1.31 ± 0.166 HC1<br />

5.59± 0.272 CC2 1.57±0.125 CC1<br />

4.11±0.272 V2 1.4±0.221 V1<br />

7.48±0.345 M2 1.5±0.290 M1<br />

(Table 3) Mean and Standard deviation of Candida albicans<br />

adhesion to all groups in cells/mm 2<br />

Mean and SD Group Mean ± SD Group<br />

3426.7 ±118.3 HC2<br />

5371.8±223.45 CC2<br />

5189.9±127.87 V2<br />

7916.5±306.68 M2<br />

1273.7±<br />

220.82<br />

1580.8<br />

±117.46<br />

1588.77 ±<br />

152.12<br />

1590.36 ±<br />

452.17<br />

HC1<br />

CC1<br />

(Table 4) Student–test comparing the mean surface roughness<br />

values for each material according to the type of surface processing<br />

Groups t – value P – value Group<br />

saliva was collected between 9.00 and 10.00 am and<br />

the volunteers had not eaten that morning. They were<br />

not taking any drugs or medications known to affect<br />

saliva production, composition, or flow within the last<br />

three months. They were not taking any antibiotics or<br />

antifungal agents. 8,7,4 Saliva was centrifuged at 14000g<br />

for 15min and then it was used immediately. 8<br />

Obtaining Candida albicans<br />

Candida albicans strain ATCC 2091 was obtained as a<br />

stock culture (from Pathological Analysis Department of the<br />

College of Health and Medical Technologies, Baghdad,<br />

Iraq), and incubated on Sabouraud dextrose agar slope<br />

at 37°C for 48 h . Standard amounts of this culture were<br />

inoculated into 2ml of liquid Sabouraud dextrose agar<br />

and incubated at 37°C for 24 h . The culture was then<br />

centrifuged (Function Line, Labofuge 400 R, Hereaus<br />

V1<br />

M1<br />

HC1 & HC2 2.9748 P


(Table 6) One-way ANOVA test comparing Candida albicans<br />

adhesion among materials processed against dental stone surface<br />

Significance P-value F-value Group<br />

VHS P


adhesion on hydrophobic material was low. This result<br />

also agrees with 16 and 19 , these studies stated that silicon<br />

soft liner are more susceptible to Candida albicans<br />

adhesion than acrylic resin since surface porosity, texture<br />

and biologic and physical / chemical affinity between the<br />

materials and microbial cells may be an important factor.<br />

The results of the present study showed that molosil<br />

soft liner processed against dental stone showed<br />

significantly higher adhesion than vertex soft liner and<br />

this agrees with 20 , a study stated that heat polymerized<br />

soft liner showed lower adhesion than room temperature<br />

polymerized soft liner. This finding is in agreement with 3 ,<br />

a study which explained this result due to the presence<br />

of porosities inside the matrix of the room temperature<br />

polymerized material which facilitates the penetration<br />

of blastospores. This finding agrees with 5,3 and 19 .<br />

This finding also agrees with 9 , a study found that the<br />

adherence of Candida albicans on room temperature<br />

polymerized surfaces is related to the polymerization<br />

method of the material tested.<br />

In this study, there was no statistically significant<br />

difference in Candida albicans adhesion between<br />

cold cured denture base acrylic resin (CC2) and heat<br />

polymerized acrylic resin based liner (V2) polymerized<br />

against dental stone surface. This is because the<br />

chemical composition of (V2) is similar to that of the<br />

polymethyl methacrylate of cold cured denture base<br />

acrylic resin polymer. 21<br />

Conclusion<br />

Rough surfaces of the denture base and soft liner<br />

promote the adhesion of Candida albicans in vitro and<br />

the surfaces that are as smooth as possible are more<br />

desirable in terms of cleanability and prevention of<br />

fungal disease. The selection of appropriate material<br />

for a given function and their fabrication may affect the<br />

performance of the material.<br />

References<br />

1. Radford DR, Watson TF, Walter JD Stephen J. Challacombe SJ. The<br />

effects of surface machining on heat cured acrylic resin and two soft<br />

denture base materials: a scanning electron microscope and confocal<br />

microscope evaluation. J Prosthet Dent. 1997;78(2):200-8.<br />

2. Waters MGJ, Williams DW, Jagger RG, Lewis MAO. Adherence of<br />

Candida albicans to experimental denture soft lining materials. J<br />

Prosthet Dent. 1997;77(3):306-12.<br />

3. Bulad K, Taylor R, Verran J, Mc Cord F. Colonization and penetration<br />

and denture doft lining materials by cardida. albicans Dent Mater.<br />

2004;20:167-75.<br />

4. Elguezabell N, Maza JL, Dorronsoro S, Pontou J. Whole saliva has a<br />

dual role on the adherence and C. albicans to polyethyl methacrylate.<br />

The open Dentistry J. 2008;2:1-4.<br />

5. Nikawa H, Jintc Hamad A, Smak RA, Kumage H, Murat H. The<br />

interactions between thermal cycled resilient denture lining materials<br />

salivary and serum pellicles and Candida albicans in vitro: part II<br />

Effects on fungal colonization. J Oral Rehab. 2000;27:124-30.<br />

6. Kulak – Ozkan Y, Kazazoglu E, Arikan A. Oral hygiene habits,<br />

denture cleanliness, presence and yeasts and stomatitis in elderly<br />

people. J Oral Rehabel. 2002;29(3):300-4.<br />

7. Moura JS, da Silva WJ, Pereira T, Bel Cury AAD, Rodrigues Garcia<br />

RCM. Influence of acrylic resin polymerization methods and<br />

saliva on the adherence of four Candida species. J Prosthet Dent.<br />

2006;96:205-11.<br />

8. Radford DR, Sweet SP, Challacombe SJ, WalterJD. Adherence of<br />

Candida albicans to denture-base materials with different surface<br />

finishes. <strong>Journal</strong> of Dentistry. 1998;26:577-83.<br />

9. Vurual C, Ozdemir G, Kurtulmus H, Kumbuloglu O, Ozcan M.<br />

Comparative effects of two different artificial body fluids on<br />

Candida albicans adhesion to soft lining materials. Dent Mater J.<br />

2010;29(2):206-12.<br />

10. Douglass LJ. Candida biofilm and their role in infection. Trends<br />

Microbiol. 2003;11:30-6.<br />

11. Grubb BR, Chadburn JL, Boucher CR. Cr. In vitro microdialysis<br />

for determination and nasal liquid composition, Am J Physiol.<br />

2002;282:1423-31.<br />

12. Nevzatoğlu EU, Özcan M, Kulak-Ozkan Y, Kadir T. Adherence<br />

of Candida albicans to denture base acrylics and silicone-based<br />

resilient liner materials with different surface finishes. Clin Oral<br />

Invest. 2007;11:231-6.<br />

13. Verran J Maryan CJ. Retention of Candida abicans on acrylic resins<br />

and silicon and different surface topography. J Prosthet Dent.<br />

1997;77:535-9.<br />

14. Taylor R, Maryan CH, Verran J. Retention of oral microorganisms<br />

on cobalt – chromium and dental acrylic resin with different surface<br />

finishes. J Prosthet Dent. 1998;80(5):592-7.<br />

15. Henriques M, Azeredo J, Oliveira R. Adhesion of Candida albicans<br />

and Candida dubliniensis to acrylic and hydroxyapatite. Colloids<br />

and Surfaces B:Biointerffaces. 2004;33(3-4):235-41.<br />

16. Pereira T, Cury AADB, Cenci Ms, Rodrigues – Garcia RCM. In vitro<br />

Candida colonization on acrylic resins and denture linors: Influence<br />

and surface frequencu, roughness, saliva and adhering bacteria. Int<br />

J prosthodnt. 2007;20:308-10.<br />

17. Hammoudi IM. Evaluation of the effect of polishing techniques on<br />

surface roughness and adhesion of Candida albicans to the acrylic<br />

complete denture. A thesis submitted to the College of Dentistry<br />

in partial fulfillment of the requirements of Master of Science in<br />

Prosthodontics, 2006.<br />

18. Periera – Cenci T, Del bdcury A, Crielard W Tencate JM.<br />

Development and Candida – associated denture stomtitis: New in<br />

sights. J App Oral sci. 2008;16(2):86-94.<br />

19. Bal BT, Yavuzyilmaz H, Yucel M. A pilot study to evaluate the<br />

adhesion oral microorganisms to temporary soft lining materials. J<br />

Oral Sci. 2008;50(1):1-8.<br />

20. Gedik H, Ozkan YK. The effect of surface roughness of siliconebased<br />

resilient liner materials on the adherence of Candida albicans<br />

and inhibition of Candida albicans with different disinfectants.Oral<br />

Health Prev Dent. 2009;7(4):347-53.<br />

21. Mese A, Guzel KG. Effect of storage duration on the hardness and<br />

tensile bond strength of silicone- and acrylic resin-based resilient<br />

denture liners to a processed denture base acrylic resin. J Prosthet<br />

Dent. 2008;99:153-9.<br />

8 th Gulf <strong>Dental</strong> Association Conference<br />

& 2 nd Qatar Internationl <strong>Dental</strong> Association Conference<br />

| 50 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011<br />

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December Expert Panel<br />

Hassan Maghaireh<br />

BDS, MFDS, MSc<br />

• BDS, Cairo University<br />

• MFDS, RCS Edinburgh<br />

• MSc Implants University of<br />

Manchester<br />

• Honorary Clinical Teacher,<br />

University of Manchester<br />

• Editorial Board; European<br />

<strong>Journal</strong> of Oral Implantology<br />

• Implant Referral Practice,<br />

Leeds - UK<br />

• maghaireh@smile-mag.com<br />

Wesam Aleid<br />

• BDS, MBBS, MRCSEd<br />

(Surgery-in-General),<br />

FFDRCSI (OSOM), FRCSEd<br />

(OMFS)<br />

• Oral, Maxillofacial, and<br />

Head & Neck Surgeon, UK<br />

• eidwisam@yahoo.com<br />

Alexandre Khairallah<br />

BDS, PGD<br />

• PGD, Oral and Maxillo- facial<br />

Imaging, Lebanese Univ.<br />

• Fellow of the European<br />

Academy of Maxillo-Facial<br />

Radiologist<br />

• Chef de Service, Oral and<br />

Maxillo-facial Imaging Dept,<br />

<strong>Dental</strong> School, Lebanese Univ.<br />

• Founder and owner of<br />

CLIR, Centre de Lecture et<br />

d’Interpretation Radiologique<br />

• alexandrekhairallah@<br />

hotmail.com<br />

Ali Abu Nema<br />

BDS, NDB, MSc<br />

• BDS, Jordan University of<br />

Science and Technology<br />

• NDB, American <strong>Dental</strong><br />

Association<br />

• MSc, Endodontics University<br />

of Manchester, UK<br />

• Private Endoodontic Referral<br />

Practice, Amman-Jordan<br />

• abunema_ali@hotmail.com<br />

What is the up to date<br />

evidence comparing flapless<br />

implant placement to<br />

conventional placement with<br />

flap elevation ?<br />

Answer: Dr. Hassan Maghaireh<br />

Flapless implant surgery is<br />

considered by some clinical reports<br />

to offer advantages over the<br />

traditional flap access approach.<br />

Clinicians supporting this view<br />

claim that flapless implants offer<br />

minimized bleeding, decreased<br />

surgical times and minimal<br />

patient discomfort, other less<br />

supported reports also claim that<br />

with flapless placement, you can<br />

get less marginal bone loss and<br />

better aesthetics. On the other<br />

hand, the view supporting open<br />

flap implant placement argue that<br />

with conventional flaps, clinicians<br />

will have better visualization for<br />

the adjacent vital structures, bone<br />

fenestratins and dehiscences,<br />

adjacent teeth and soft tissue<br />

thickness, making it easier for<br />

the clinicians to place the dental<br />

implant(s) in the optimum way, in<br />

addition to allowing the clinician to<br />

carry out guided bone regeneration<br />

procesure simultaneously with<br />

implant placement which in return<br />

allows for better aesthetic results.<br />

While the dental literature is full<br />

of descriptive studies and clinical<br />

case reports promoting flapless<br />

implant placement as a modern<br />

technique, there is very little properly<br />

conducted random controlled<br />

clinical studies comparing flapless<br />

placement with conventional flaps<br />

in implant dentistry. The systematic<br />

review conducted by Esposito et al.<br />

(2007) has only managed to identify<br />

five well conducted trials on this<br />

topic and has concluded that while<br />

flapless implant placement is feasible<br />

and has been shown to reduce<br />

patient postoperative discomfort<br />

in adequately selected patients, no<br />

effect was found on marginal bone<br />

level or final aesthetic results.<br />

| 54 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011


A recent well conducted random<br />

controlled trial by Cannizzaro et<br />

al. (2010), compared flapless<br />

versus open flap implant surgery<br />

in partially edentulous patients,<br />

in a split mouth design involving<br />

40 patients and 143 implants,<br />

reported no statistically significant<br />

difference between the two groups<br />

when looking into implants and<br />

prosthetic success and post operative<br />

complications. However, the same<br />

study reported that placement of<br />

flapless implants required statistically<br />

significant less time than placement<br />

after flap elevation with their patients<br />

reporting less post operative swelling<br />

and requiring less analgesics.<br />

However, what’s interesting is that<br />

this well conducted study which was<br />

the first to look in to the effect of<br />

flapless implants on marginal bone<br />

levels in comparison to open flap<br />

surgery, has reported no statistically<br />

significant differences between the<br />

two groups at baseline and 1 year<br />

after loading.<br />

To conclude, Flapless implant<br />

placement is becoming a popular<br />

topic in implant dentistry, and<br />

with the evolution in radiological<br />

imaging and introduction of new<br />

techniques like the Nobel Guide<br />

protocol, it became a more precise<br />

and predictable procedure in<br />

well selected patients. We should,<br />

however, be aware that flapless<br />

surgery does not automatically<br />

contribute to a better direct<br />

postoperative quality of life or better<br />

aesthetics.<br />

Recommended reading list:<br />

• Interventions for replacing missing<br />

teeth: management of soft tissues for<br />

dental implants, Esposito M, Grusovin<br />

MG, Maghaireh H, Coulthard P,<br />

Worthington HV. Chichester, UK:<br />

Cochrane Database of Systematic<br />

Reviews 2007 John Wiley & Sons, Ltd.<br />

• Flapless versus open flap implant<br />

surgery in partially edentulous<br />

patients subjected to immediate<br />

loading: one-year results from a splitmouth<br />

randomised controlled trial.<br />

Cannizzaro G, Esposito M, EJOI 2011.<br />

• A comparison of two implant<br />

techniques on patient-based outcome<br />

measures: a report of flapless<br />

vs. conventional flapped implant<br />

placement, Jerome A. Lindeboom,<br />

Arjen J. van Wijk, Clin. Oral Impl. Res.<br />

21, 2010.<br />

In condylar Fractures,<br />

is open reduction and<br />

internal fixation better than<br />

functional intermaxillary<br />

fixation?<br />

Answer: Dr. Wesam Aleid<br />

Background<br />

Treatment of condylar fractures<br />

has always been and continues to<br />

be an area of hot debate, as to<br />

whether conservative treatment with<br />

Functional intermaxillary fixation<br />

(IMF) is as good as the open<br />

reduction and internal fixation (ORIF).<br />

Several classification systems<br />

emerged e.g. Spiessel and Schroll,<br />

Neff, and SORG. The most widely<br />

used classification in the United<br />

Kingdom is the one described by<br />

Richard Loukota in 2005 1 which was<br />

revised in 2009. 2<br />

Evidence<br />

Several clinical trials have been<br />

conducted over the past two decades<br />

to objectively measure the difference<br />

in outcome between IMF and ORIF.<br />

In 1998 JOOS compared the<br />

outcome in a group of 122 patients<br />

with 138 fractures, he concluded<br />

that simple conservative treatment<br />

had comparable results to ORIF<br />

and therefore should be first line<br />

management.<br />

In 2003 Luc treated 60 patients<br />

with 71 fractures conservatively<br />

and despite that 35% of his patients<br />

developed symptoms of TMJ<br />

dysfunction, he still concluded that<br />

it is reasonable to manage condylar<br />

fractures conservatively unless the<br />

overlap between fragments is more<br />

than 8mm, which is an indication for<br />

ORIF in his view.<br />

In 2006 Eckelt and Loukota 3<br />

published a prospective randomised<br />

multi-centre study which they refined<br />

in 2008. 4 The study included 66<br />

patients with 79 fractures, which<br />

has shown a significantly improved<br />

outcome for patients treated with<br />

ORIF when the Fracture angulation<br />

was more than 10 degrees, when<br />

the ramus shortening (overlap)<br />

was more than 2mm, or when the<br />

fracture was bilateral.<br />

Confusion<br />

What about growing children?<br />

How I do it:<br />

At any age if no malocclusion is<br />

present then treatment is only with<br />

soft diet. Even minimal malocclusion<br />

should be allowed a week before<br />

any intervention as it may be a<br />

consequence of joint effusion,<br />

tissue oedema or pain rather than<br />

displacement of the fracture (Fig. 1).<br />

(Fig. 1) Right side of a PA mandible showing<br />

minimally displaced right condylar fracture.<br />

In Adults, the absolute indications<br />

for ORIF are:<br />

• Inability to obtain adequate<br />

occlusion by closed treatment<br />

• Lateral extracapsular displacement<br />

of the condyle<br />

• Displacement of the condyle into<br />

the external auditory meatus or the<br />

middle cranial fossa<br />

• Presence of foreign body or gross<br />

contamination of the joint<br />

Relative indications for ORIF:<br />

• Bilateral condylar fractures in<br />

edentulous Jaw<br />

• Bilateral condylar fracture in<br />

presence of midface comminution<br />

• IMF contraindicated for medical<br />

reasons (like COPD, Epilepsy, etc...)<br />

• Ramus shortening (fragment<br />

overlap) of more than 2mm (Figs.<br />

2-4)<br />

• Fragments angulation of more than<br />

10 degrees (Figs. 2-4)<br />

Children less than 12 years old:<br />

Always IMF as first line, starting with<br />

rigid fixation for seven to ten days<br />

<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011| 55 |


(Fig. 2) Coronal CT of left condylar fracture<br />

with comminution angulation, and overlap<br />

the mandibular condylar process–a<br />

prospective randomized multi-centre<br />

study. <strong>Journal</strong> of Cranio-Maxillofacial<br />

Surgery. 2006;34:306-14.<br />

4. Matthias Schneider et al. Open<br />

Reduction and Internal Fixation<br />

Versus Closed Treatment and<br />

Mandibulomaxillary Fixation of<br />

Fractures of the Mandibular Condylar<br />

Process: A Randomized, Prospective,<br />

Multicentre Study With Special<br />

Evaluation of Fracture Level. J Oral<br />

Maxillofac Surg. 2008;66:2537-44.<br />

(Fig. 1) Drawing of the line<br />

What are the causes<br />

of differences in height<br />

between measurements on<br />

para axial cuts issued from<br />

a Dentascan and the clinical<br />

reality?<br />

(Fig. 2)<br />

Cut for choosing<br />

implant<br />

(Fig. 3) PA mandible of left condylar fracture<br />

(same patient in figure1)<br />

(Fig. 4) PA mandible of left condylar fracture<br />

following ORIF (same patient in figure1)<br />

followed by functional (elastics) IMF<br />

for three to four weeks due to risk of<br />

ankylosis of the joint.<br />

Children 12 to 17 years old:<br />

Treat with IMF for two to three<br />

weeks. If Malocclusion persists<br />

consider ORIF.<br />

References<br />

1. Loukota RA et al. Subclassification<br />

of fractures of the condylar process<br />

of the mandible. British <strong>Journal</strong><br />

of Oral and Maxillofacial Surgery.<br />

2005;43:72-3.<br />

2. Loukota R.A. et al. Nomenclature/<br />

classification of fractures of the<br />

mandibular condylar head. British<br />

<strong>Journal</strong> of Oral and Maxillofacial<br />

Surgery. 2010; 48:477-8.<br />

3. ECKELT U et al. Open versus<br />

closed treatment of fractures of<br />

Answer: Dr. Alexandre Khairallah<br />

The dentascan exam consists of a<br />

series of axial acquisitions parallel<br />

to the palate in the upper jaw and<br />

the inferior border of the mandible<br />

in the lower jaw; these are fixed<br />

teeth free references. After choosing<br />

a specific axial cut (fig. 1) passing<br />

by the apices of teeth for instance<br />

or parallel to the inferior alveolar<br />

nerve,or the floor of the sinus,the<br />

operator will draw a line with his<br />

mouse on this particular cut.<br />

The computer will automatically<br />

generate a series of para axial<br />

cuts perpendicular to this specific<br />

line.Usually all measurements are<br />

done on para axial cuts in order to<br />

choose the exact implant’s length<br />

and width (fig. 2). As mentioned<br />

above, para axial cuts are<br />

perpendicular to the line and not<br />

to the maxilla or mandible (fig. 1).<br />

Special attention must be drawn in<br />

designing this specific line, it must<br />

be parallel to the outer aspect of<br />

the mandible or maxilla in order to<br />

get theexact length and width of the<br />

remaining bone (fig. 3); otherwise<br />

measurements are calculated on<br />

an oblique cut (fig. 4) and usually<br />

this will lead to overestimated<br />

measurements since the hypotenuse<br />

of a rectangular triangle is bigger<br />

than the adjacent segments<br />

according to the Pythagoras theorem<br />

in trigonometry (c2=a2+b2).<br />

(Fig. 3) Parallel line will give exact measurements<br />

(Fig. 4) Non parallel line will give wrong<br />

measurements<br />

For further informations you may<br />

consult these references:<br />

• Liang-Kuang C, Cheng-Tau Su,<br />

Yuh-Feng T. Spiral <strong>Dental</strong> CT: Use in<br />

Evaluating <strong>Dental</strong>Implantation. Chin J<br />

Radiol. 2006;26:209-14.<br />

• Danforth R, Dus I, Mah J. 3-D Volume<br />

Imaging for Dentistry: A New Dimension.<br />

CDA <strong>Journal</strong>. 2003;31:817-23.<br />

• Covino SW, Mitnick RJ, Shprintzen<br />

RJ, Cisneros GJ. The accuracy of<br />

measurements of three-dimensional<br />

computed tomography reconstructions. J<br />

Oral MaxillofacSurg. 1996;54:982-90.<br />

C<br />

M<br />

Y<br />

CM<br />

MY<br />

CY<br />

CMY<br />

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| 56 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011


What are the advatnages<br />

and disadvantages of using<br />

Chlorhexidine as a root<br />

canal irrigant?<br />

Answer: Dr. Ali Abu Nema<br />

Bacteria and their<br />

byproducts are<br />

considered to be one of<br />

the main causes of root<br />

canal treatment failure.<br />

Hence, a major objective<br />

in root canal treatment is<br />

to disinfect the entire root<br />

canal system.<br />

Chlorhexidine digluconate<br />

(CHX) is widely used in<br />

disinfection because of<br />

its excellent antimicrobial<br />

activity. Its cationic structure<br />

provides a unique property<br />

named substantivity;<br />

however, it lacks tissue<br />

dissolving ability.<br />

CHX<br />

Mechanism of action<br />

CHX is a positively charged<br />

hydrophobic-lipophilic molecule<br />

that interacts with phospholipids<br />

and lipopolysaccharides on the<br />

cell membrane of bacteria and<br />

enters the cell through some type<br />

of active or passive transport<br />

mechanism. Its efficacy is due to the<br />

interaction of the positive charge<br />

of the molecule with the negatively<br />

charged phosphate groups on<br />

C<br />

microbial cell walls, which alters<br />

M<br />

the cells osmotic equilibrium. This<br />

Y<br />

CM<br />

(Fig. 1)<br />

d) Cell Lysis<br />

increases the permeability of the cell<br />

wall, allowing the CHX molecule to<br />

penetrate into the bacteria (fig. 1).<br />

Antibacterial activity<br />

2% CHX was found to be the<br />

only solution able to eliminate<br />

Actinomyces israelii. Oncag et al.<br />

evaluated the antibacterial properties<br />

against Enterococcus faecalis of<br />

5.25% NaOCl and 2% CHX. The 2%<br />

CHX was significantly more effective<br />

against E faecalis. Also it has shown<br />

Mechanisms of CHX<br />

Active (or) Positive<br />

Transport Mechanism<br />

a) +ve Charged CHX Molecules<br />

b) -ve charged phoshate<br />

groups on microbial cell wall<br />

c) CHX interacts with phosphate group of<br />

microbial cell which after the cells osmotic equilibrium<br />

to be that 2% CHX is very effective<br />

against Staphylococcus aureus and<br />

Candida albicans.<br />

Substantivity<br />

The antimicrobial substantivity of a<br />

2% CHX solution as an endodontic<br />

irrigant was reported to be 72<br />

hours. It has been found that 5 min<br />

application of 2% CHX solution<br />

induced substantivity for up to 4<br />

weeks. Another study found that the<br />

substantivity of 2% CHX solution for<br />

10 min application was for 12 weeks.<br />

Leakage of<br />

adenosine tri<br />

phosphate<br />

Nucleic Acid<br />

(Fig. 2)<br />

Interaction between CHX<br />

and NaOCl<br />

A suggested clinical<br />

protocol consists of<br />

irrigation with NaOCl<br />

to dissolve the organic<br />

components, irrigation<br />

with EDTA to eliminate the<br />

smear layer and irrigation<br />

with CHX to increase the<br />

antimicrobial activity and<br />

to induce substantivity. Such<br />

a combination of irrigants<br />

may enhance the overall<br />

antimicrobial effectiveness,<br />

however, some studies have<br />

reported the occurrence<br />

of color change and<br />

precipitation when NaOCl<br />

and CHX are combined<br />

and shown to be toxic. Furthermore,<br />

the color change may have some<br />

clinical relevance because of staining<br />

and that the precipitate might interfere<br />

with the seal of the root filling (fig. 2).<br />

Please find below two recommended<br />

articles discussing the above topic:<br />

• Mohammadi Z, Abbott PV. The<br />

properties and applications of<br />

chlorhexidine in endodontics. Int Endod<br />

J. 2009;42(4):288-302.<br />

• Kanisavaran ZM. Chlorhexidine<br />

gluconate in endodontics: an update<br />

review. Int Dent J. 2008;58(5):247-57.<br />

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<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011| 57 |


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Summarized & Presented by:<br />

Hani Abudiak<br />

BDS, MFDS RCSFRCD, PhD Paediatric Dentistry, Leeds University<br />

• Canadian Fellowship in Paediatric Dentistry<br />

• Senior <strong>Dental</strong> Officer in Paediatric, Bradford Teaching Hospital, England<br />

• Private Paediatric Referral Practice, Leeds, England, UK<br />

hani@clarendondentalspa.co.uk<br />

Endodontic or <strong>Dental</strong> Implant Therapy<br />

The Factors Affecting Treatment Planning<br />

JADA, Vol. 13, July 2006<br />

Mahmoud Torabinejad, DMD, MSD, PhD; Charles J. Goodacre, DDS, MSD<br />

Background<br />

For decades, all disciplines of dentistry have strived to prevent and treat caries and periodontal disease, as well<br />

as to restore function and esthetics to patients affected by oral diseases or traumatic injuries. Despite these efforts,<br />

many non-restorable teeth and teeth with severe periodontal involvement have been extracted, and traditionally<br />

they have been replaced with fixed or removable prostheses. Advances in implant dentistry have provided<br />

thousands of completely and partially edentulous patients with a more functional and attractive alternative to fixed<br />

and removable prostheses.<br />

Nowadays, clinicians are confronted with difficult choices regarding whether a tooth with pulpal and/or periapical<br />

disease should be saved through endodontic treatment or be extracted and replaced with an implant.<br />

Methods<br />

The authors examined publications (research, literature reviews and systematic reviews) related to the factors<br />

affecting decision making for patients who have oral diseases or traumatic injuries.<br />

Results<br />

The factors to be considered included patient-related issues (systemic and oral health, as well as comfort and<br />

treatment perceptions), tooth- and periodontium-related factors (pulpal and periodontal conditions, color<br />

characteristics of the teeth, quantity and quality of bone, and soft-tissue anatomy) and treatment-related factors (the<br />

potential for procedural complications, required adjunctive procedures and treatment outcomes).<br />

Conclusions<br />

The decision by the clinician and patient to retain or remove teeth should be based on a thorough assessment of<br />

information related to risk factors affecting the long-term prognosis for endodontic and dental implant treatment.<br />

The clinician should consider several factors when determining whether to save a tooth through endodontic therapy<br />

or extract it and place an implant. These factors pertain to the patient’s health status, the condition of the tooth and<br />

periodontium, and treatment-related considerations.<br />

Patient-related factors include systemic and oral health, as well as patients’ comfort and perceptions about<br />

treatment. Tooth- and periodontium-related factors include pulpal and periodontal conditions, biological<br />

environmental considerations, color characteristics of the teeth, quantity and quality of bone, and soft-tissue<br />

anatomy. Treatment-related factors include an assessment of potential procedural complications, required<br />

adjunctive procedures and treatment outcomes data.<br />

The British Academy in Implant Dentistry (BAID)<br />

is Delighted to Announce<br />

the 2012 Dates for the Diploma Examination<br />

BAID Diploma<br />

Exam : Part 1<br />

Jordan Setting UK Setting<br />

Date 22 July 2012 10 August 2012<br />

Location Amman London<br />

Fee £360 £360<br />

Closing date 28 May 2012 25 June 2012<br />

| 60 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011<br />

BAID Diploma<br />

Exam : Part 2<br />

UK Setting<br />

Iraq Setting<br />

Date 10-11 August 2012 24-25 September 2012<br />

Location London Erbil<br />

Fee £950 £950<br />

Closing date 30 June 2012 30 July 2012<br />

For more information: BAID@live.co.uk, www.baid.org.uk


Effect of Teeth with Periradicular Lesions<br />

on Adjacent <strong>Dental</strong> Implants<br />

Shabahang S., Bohsali K, Boyne P., Caplanis N., Lozada J., Torabinejad M. September 2003<br />

Oral Surg - Oral Med - Oral Pathol - Oral Radiol - Endod. Vol. 96 No. 3 pp 321-326<br />

Introduction<br />

There are a number of factors that may cause areas of inflammation in the bone surrounding a root form implant,<br />

such as overheating the bone during surgery, fenestration of the osteotomy site, remaining root particles or foreign<br />

bodies and contamination of the implant surface with saliva or bacterial plaque during insertion. Whilst these factors<br />

can largely be avoided, with the increased use of implants placed amongst a natural dentition there is an increased<br />

risk of periradicular infections that may come into close contact with an adjacent implant. If such a lesion is capable of<br />

contaminating the implant surface with endotoxins then decontamination or biological repair, particularly of roughened<br />

surfaces, may be difficult and therefore osseointegration may be compromised along with long-term success.<br />

It was the purpose of this study to determine in a animal model the effect of periradicular lesions on the<br />

osseointegration of dental implants with or without treatment of the adjacent root and implant surface.<br />

Materials and Methods<br />

The second and third maxillary and mandibular premolars were extracted bilaterally in five adult beagle dogs and<br />

a total of 40 implants placed at an angle with their apices in close proximity (1-2mm separation) to the root apices<br />

of the remaining 1st and 4th premolars. The implants were Calcitek solid core or HA-coated with dimensions of<br />

3.75mm x 10mm. After a healing interval of 2 months, the implants were randomly allo cated to one of four groups<br />

each comprising 10 implants at which time they were surgically exposed and healing abutments placed. Each<br />

animal received weekly chlorhexidine applica tion and monthly prophylaxis during the experimental period in order<br />

to maintain healthy periimplant tissues. In group A the adjacent teeth were left untouched to serve as a negative<br />

control. In group B and C periradicular lesions were induced by opening the teeth to the oral environment for 7 days<br />

and then sealing the cavity for a further 8 weeks. The induced lesions were considered complete when there was no<br />

evidence of bone radiographically between the root and the implant apices. Each of the lesions group B and C were<br />

treated with conventional 2-visit endodontic procedures with intermediate calcium hydroxide dressings, however for<br />

group C the periradicular lesions were also surgically debrided and the implant surface cleaned with an air/powder<br />

abrasive unit (Prophy Jet, Dentsply) for 30 seconds and completed with a further 60 seconds of supersaturated citric<br />

acid application. The premolar teeth forming group D had periradicular lesions induced in the same manner as<br />

groups B and C, 5.5 months after implant placement. All animals were sacrificed at 7.5 months for histology. This<br />

was carried out blind and involved analysis of the apical 4mm of each opposing implant or tooth surface for the<br />

percentage osseointegration. Differences in the amount of osseointegration between groups, jaws and animals was<br />

evaluated using one-way analysis of variance (ANOVA) and the Pearson correlation coefficient to determine any<br />

significant differences between any of the various tooth and implants sites.<br />

Results<br />

Only one implant was lost to the study after an early failure. The average percentage integration for the groups was<br />

54%(A), 74%(B), 56%(C) and 68%(D). ANOVA revealed no differences between the four groups (P=0.518). After root<br />

treatment of the adja cent premolar the group B implants showed resolution of the bony defect in 87% of the sites<br />

whilst the surgical debridement group C this was reduced to 68%. No healing was observed in group D which had<br />

formed the positive controls.<br />

Discussion and Conclusions<br />

Within the limitations of this prospective study and the relatively small sample size, the surgically debrided sites<br />

appeared to do slightly less well than those only receiving conventional orthograde endodontics, the differences<br />

however were clinically insignificant with no tangible benefits from the detoxification process. Future studies could also<br />

determine whether or not bacterial contamination or endotoxins are present in the lesions adjacent to the implants.<br />

<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011| 61 |


The Effects of Smoking on Fracture Healing<br />

Sloan A., Hussein I., Maqsood M., Eremin O., El-Sheemy M. April 2010<br />

The Surgeon, Vol. 8 No. 2 pp 111-116<br />

Apart from premature death; smoking has been implicated in increased morbidity and can affect the dynamics of<br />

bone healing from a surgical viewpoint. The harmful effects of tobacco smoke would appear to be dose-related<br />

and smoking cessation has been recommended to reverse the damaging nature of the habit. This current review<br />

assesses the role of tobacco smoking in cellular activity and bone repair.<br />

Whether or not smoke is inhaled or released into the surrounding air, 95% of it is made up of volatile acids. Around<br />

500 gases are released including carbon monoxide, carbon dioxide, ammonia, hydrogen cyanide and benzene.<br />

The particulate phase accounts for the remaining 5% and approximately 3500 chemicals are produced including<br />

nicotine, anatabine and anabasine. The particulate phase also consists of tar, which contains the carcinogens.<br />

Depending on brand, around 2-3mg of nicotine and 20-30ml of carbon monoxide are inhaled from each<br />

cigarette. Nicotine is thought to be the addictive component in tobacco and causes increased platelet aggregation,<br />

decreased microvascular protacyclin levels and inhibition of the biological function of fibroblasts. The peripheral<br />

vasoconstriction caused by nicotine leads to decreased blood flow to the extremities and the chemical also has<br />

effects on plasma hormone levels with vasopressin, B-endorphin, adenocorticotrophic hormone (ACTH) and cortisol,<br />

all showing raised levels. Carbon monoxide arises from incomplete paper and tobacco combustion and displays<br />

a greater affinity (200-fold) for hemoglobin binding when compared to oxygen. The ensuing carboxyhemoglobin<br />

formed leads to hypoxia with 10 minutes of smoking leading to tissue-hypoxia for about 1 hour.<br />

Smoking is thought to affect the fracture healing process due to a reduced blood supply to the injury site although<br />

many theories exist relating to the role of free radicals, antioxidants and the attenuating effects of nicotine.<br />

High doses of nicotine have also been shown to be toxic to osteoblasts and calcitonin. In addition it is thought<br />

that other components in cigarette smoke can possess osteoblast-damaging properties. Clinical studies have<br />

highlighted the negative effects of smoking on lumbar fusion procedures and the union of open tibial fractures<br />

to a statistically significant degree. Surgical fixation has also been recommended for all fractures that are not<br />

amenable to closed reduction.<br />

Perioperative smoking cessation is generally advised although guidelines are vague, ranging from 1-28 days<br />

pre-operatively and 5-28 days post-operatively. A minimum of 12 hours cessation pre-operatively is necessary for<br />

the time required to clear CO levels from the human body. Although it is claimed that smoking causes irreversible<br />

systemic and local tissue damage, surgical treatment should not be denied to those who do not stop smoking,<br />

since cessation in itself cannot reverse all of the negative effects.<br />

Discussion and Conclusions<br />

This review suggests that many human and animal studies have demonstrated the negative effects of smoking on<br />

wound and fracture healing. It is thought that the effects are mediated by the vasoconstrictive, platelet-activating<br />

and aggregating properties of nicotine. In addition, at the cellular level, carbon monoxide has a hypoxic effect<br />

and hydrogen cyanide inhibits oxidative metabolism. Tobacco smoking has been strongly implicated in delayed<br />

healing and non-union of fractures. An evaluation of smoking history and cessation prior to surgery are advised<br />

so that the risks, complications and harmful effects of the habit can be suitably discussed and addressed.<br />

thth CAD/CAM & Computerized Dentistry<br />

International Conference<br />

6 thth<br />

CAD/CAM & Computerized Dentistry<br />

| 62 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011<br />

3 - 4 May 2012<br />

The Ritz-Carlton Hotel<br />

Dubai, UAE<br />

Dubai International<br />

Financial Center


www.aedsc.org


Meet us at<br />

AEEDC 2012<br />

Booth Booth 389+390 303<br />

mlutfi@m-lutfi.com


British Academy of Implant Dentistry in Iraq<br />

The British Academy of Implant Dentistry (BAID) has launched its scientific activities in the Middle East by starting the one year implant<br />

course “Comprehensive Evidence Based and Clinical Implantology Course” in Iraq. This course came to light following the hard work<br />

and great co-operation between BAID and the Iraqi <strong>Dental</strong> Association. Dr. Aljobory, the president of the dental association confirmed<br />

that this intensive eight module clinical implant course (six academic modules & two<br />

clinical modules) has been recognized by the Ministry of Health in Iraq as one of<br />

the post graduate diplomas, the Iraqi dentists can register as one of their degrees.<br />

On the other side, Dr. Maghaireh; the head of the international section in BAID has<br />

confirmed that this well structured implant course meets the General <strong>Dental</strong> Council-<br />

UK requirement in implant training in Britain and qualifies the course delegates to gain<br />

accredited CPD hours by the British Academy of Implant Dentistry upon finishing the<br />

course academic and clinical requirements and passing the course written exam.<br />

This course will also exempt the successful delegates from the first part of the Diploma<br />

in Implant Dentistry exams by the British Academy Of Implant Dentistry, and qualifies<br />

them to apply for the 2 nd and final part of these exams, which are run by a group<br />

of eminent implant clinicians and researchers such as Dr. Ibsy Hussain; the current<br />

president of the British Academy of Implant Dentistry and Prof. Marco Esposito, who is<br />

an internationally renowned researcher in implant dentistry.<br />

This course in its first version attracted 108 dentists from all<br />

around Iraq and was hosted in Erbil, the quiet but fascinating<br />

city who is famous with its very friendly and helpful people.<br />

The first module which took place on 25 th and 26 th November,<br />

featured prominent speakers from the University of<br />

Manchester, Nottingham Medical Centre and Eastman <strong>Dental</strong><br />

Institute and focused on the importance of treatment planning<br />

in implant dentistry, role of medical screening for implant<br />

patients and principled of surgical planning in implant therapy.<br />

Finally, it is worth mentioning that this course has received<br />

a very positive feedback from all of the delegates as well as<br />

the Ministry of Health observers, who commended the British<br />

academy of Implant Dentistry for delivering lectures high<br />

standard lectures.<br />

| 66 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011


EPTA: CRITIC’s TEST<br />

You could look at Epta for hours and still not unveil the secrets<br />

invisibly and mysteriously concealed in its faultless details.<br />

Meticulous design and simply beautiful materials.<br />

A brilliant confl uence of technology and art that enhances your<br />

talent and elevates your constant striving for perfection.<br />

Epta. Technology and design. Beyond semblance.<br />

AEEDC 2012<br />

Booth 308 - 311<br />

EPTA: THE ORIGINAL<br />

dentalArt_ love of details<br />

dentalArt spa<br />

Montecchio Precalcino<br />

Vicenza . Italy<br />

tel. +39 0445 802000<br />

www.dental-art.it<br />

Visit the “<strong>Dental</strong> Art Installations” on our<br />

website and discover latest Epta line<br />

compositions<br />

Middle East Area Manager<br />

Mahmoud Lutfi<br />

P.O.Box 641 11941 Amman Jordan<br />

Tel: +962 6 5656404/5<br />

Mobile: +962 7 95536867<br />

Email: mlutfi@m-lutfi.com


Richa <strong>Dental</strong> Store<br />

Organizes its 3 rd Implantology<br />

training trip to Milan, Italy<br />

From 15 th till 18 th of December 2011 RICHA DENTAL<br />

STORE have organized a trip to NOVAXA LEADER<br />

Course Center, Milano, Italy for 12 dentists from<br />

Lebanon accompanied by Dr. Chadi Richa where a<br />

large number of participants gathered from different<br />

countries to attend this course.<br />

The advanced course was held by Dr. Stefano Palmieri<br />

with the participation of our guest Dr. Mohamad<br />

Sartawi; well-known speaker and opinion leader in the<br />

Middle East Area.<br />

The Dentists who participated in this trip were:<br />

Dr. Pascale Habr, Dr. Georges Hallage, Dr. Rosy Brax,<br />

Dr. August Badawi, Dr. Alexandre Khairallah, Dr. Joseph<br />

Abi Nasr, Dr. Houssam Abou Hamdan, Dr. Mohamad<br />

El Masri, Dr. Jihad El Husseiny, Dr. Imad Mahfouz, Dr.<br />

Machhour Moumneh and Dr. Abed El Salam Baalbacky.<br />

The group also spent an enjoyable time discovering<br />

different Italian cities such as Milan, Venice and Rome.<br />

www.richadental.com<br />

MYDENT International<br />

Introduces New Ortho Boxes<br />

Mydent International has introduced Retainer and Denture<br />

Ortho Boxes, the latest in its line of DEFEND products.<br />

DEFEND Retainer Boxes, #OB-2000, are crush proof<br />

and feature a solid locking mechanism. These boxes<br />

are easy to clean and come in 5 assorted colors. The<br />

dimensions of these Retainer Boxes are 3” x 2½“ x 1”<br />

deep. They are packed 12 per box.<br />

Skema 8 – the Hallmark of<br />

Excellence<br />

Skema 8 is the complete Castellini treatment centre.<br />

Equipped with a selection of integrated specialist instruments<br />

and exclusive technologies, the unit offers both the freedom<br />

and flexibility of an all-inclusive concept and the solid values<br />

of Castellini design.<br />

Whatever the specialisation, from conservative dentistry<br />

to oral surgery, dental surgeons can turn to Skema 8 for<br />

immediate answers: a brushless micromotor capable of<br />

extensive torque values, the LAEC system for maximum<br />

efficiency and clinical safety in endodontic treatments,<br />

Autosteril for total hygiene and the latest Castellini surgical<br />

ultrasound handpiece.<br />

In terms of comfort and ergonomics, the hydraulic patient<br />

chair is an unrivalled example of design excellence, ensuring<br />

far more than simply synchronised movements. In all clinical<br />

situations, Skema 8 represents the peak of quality, working<br />

comfort and advanced performance - a thoroughbred.<br />

The Skema range of treatment centres, to which Skema<br />

8 belongs, is the result of innovation aimed at constantly<br />

raising the standards and quality of the unit to the advantage<br />

of the dental professional. Practicality is crucial in making<br />

advanced technologies immediately accessible. Each part of<br />

the Skema unit demonstrates Castellini’s ability to provide<br />

the surgeon with cutting-edge technology to ensure solutions<br />

which are as advanced as they are highly practical.<br />

Visit us at AEEDC Dubai 2012 / Booth 364 -Hall 7<br />

www.castellini.com<br />

DEFEND Denture Boxes, #OB-1000, feature high-impact plastic, 1 piece construction and contoured corners for ease of<br />

cleaning. The tight fitting lid holds 1 or 2 dentures, with dimensions of 3” x 2½” x 2” deep. DEFEND Denture Boxes are<br />

packed 12 per box in 4 assorted colors.<br />

These high quality DEFEND Ortho Boxes close completely and securely, have a durable hinge and keep contents safe. They<br />

are available through most dental dealers.<br />

Mydent International is dedicated to fully maintaining its brand promise: "To provide the healthcare professional with the<br />

highest quality infection control products, disposables, preventatives and impression material systems at affordable prices,<br />

supported by superior service and 100% Customer Satisfaction." DEFEND: Works Better. Lasts Longer. Costs Less.<br />

www.defend.com<br />

| 70 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011


Don’t miss the<br />

SOARIC at AEEDC<br />

Hall 6<br />

Booth 178,179, 202, 203


Silfradent Optimizes Tissue<br />

Regeneration<br />

Platelets: a Reservoir of<br />

Endogenous Growth Factors<br />

C.G.F.: Concentrated Growth Factors<br />

L.F. Rodella , M. Labanca, R. Rezzani<br />

An interesting clinical<br />

option for optimizing tissue<br />

regeneration is the use of<br />

platelet concentrate. Platelets,<br />

in fact, contain high quantities<br />

of growth factors, such as<br />

platelet-derived growth factor<br />

(PDGF), transforming growth<br />

factor TGF-ß1 and TGF-ß2,<br />

fibroblast growth factor (FGF),<br />

vascular endothelial growth<br />

factor (VEGF) and insulin-like<br />

growth factor (IGF), which<br />

stimulate cell proliferation,<br />

matrix remodeling and<br />

angiogenic processes during<br />

tissue regeneration.<br />

To date, numerous<br />

techniques using platelet<br />

concentrate have been<br />

developed in order to obtain<br />

different ratios of platelets,<br />

growth factors and fibrin<br />

matrix, among these PRP<br />

(Platelet Rich Plasma), PRF<br />

(Platelet Rich Fibrin) and<br />

CGF (Concentrated Growth<br />

Factors).<br />

CGF is an innovative<br />

method for producing a new<br />

generation of platelet concentrates that is characterized by a<br />

high concentration of autologous growth factors.<br />

It is produced by processing blood samples with a special<br />

blood phase separator (Medifuge MF200, Silfradent srl,<br />

Forlì, Italy) without the addition of anticoagulant factors. In<br />

particular, the potential of CGF is a solid consistency: in fact,<br />

it is a rich and dense fibrin matrix in which multiple platelet<br />

cell elements were “trapped” and some growth factors,<br />

i.e. TGF-ß1 and VEGF, were expressed. Moreover, it seems<br />

to be a potential source of CD34 positive cells, which are<br />

known to be recruited from blood to injured tissue and play<br />

a role in vascular maintenance, neovascularisation and<br />

angiogenesis.<br />

Regarding its applications, CGF was reported to have a<br />

good regenerative capacity and a high versatility on sinus<br />

and alveolar ridge augmentation. Nevertheless, these<br />

characteristics make CGF functional for different clinical<br />

applications in the field of tissue regeneration.<br />

www.silfradent.com<br />

| 72 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011


Brings simplicity to Endodontics<br />

WaveOne, from DENTSPLY Maillefer, is the new<br />

endodontic system designed to provide simplicity and<br />

efficiency to the root canal shaping procedure.<br />

The WaveOne motor works in a reciprocating mode with<br />

a large rotating angle in the cutting direction providing<br />

high efficiency, whereas a smaller angle in the reverse<br />

direction allows the WaveOne file to safely progress<br />

along the canal path, respecting the root canal anatomy.<br />

The optimised angles also reduce the risk of a screwing<br />

effect and file breakage.<br />

Single file technique<br />

The reciprocating technique makes it possible to shape<br />

most root canals using only one single WaveOne<br />

Nickel-Titanium (NiTi) file. No time is wasted changing<br />

NiTi instruments during the root canal shaping procedure<br />

and the global shaping time is decreased by up to 40%<br />

versus a traditional continuous rotary technique, whilst still<br />

providing premium quality root canal treatments.<br />

The WaveOne file geometry was conceived specifically to<br />

benefit from the optimised pre-programmed reciprocating<br />

movement of the WaveOne motor. The proprietary<br />

DENTSPLY M-Wire Nickel-Titanium technology provides<br />

additional flexibility and greater resistance to cyclic fatigue,<br />

the leading cause of file separation.<br />

Single patient use<br />

DENTSPLY Maillefer advocates single patient use as a<br />

new standard of care, by proposing the WaveOne<br />

reciprocating NiTi files exclusively in presterilized blister<br />

packs and fitted with a non autoclavable handle. The<br />

advantages are:<br />

• Simplicity<br />

• No risk of cross contamination<br />

• Optimal cutting efficiency<br />

• Better control of file breakage<br />

www.dentsplymea.com<br />

TIXOS: Manufactured by Direct<br />

Laser Metal Forming Technique<br />

TIxos implants line has been developed after years of<br />

research in cooperation with important National and<br />

International Universities and Research Centers. Tixos<br />

implants, manufactured through the exclusive and original<br />

technique of Direct Laser Metal Forming, are designed<br />

in 3D: around a very compact core an isoelastic surface<br />

is created, which replicates the bone spongy geometry;<br />

such a structure is highly mimetic, thus accelerating<br />

bone healing and enhancing faster osseointegration,<br />

as demonstrated by different in vitro and in vivo human<br />

studies*. The tridimensional geometry constituted by<br />

micro and macro-cavities of well defined sizes and form,<br />

interconnected by micro-pores, promotes bone formation.<br />

* References available on www.leaderitalia.it<br />

New Procedures for the<br />

Construction of the Implant Tunnel<br />

using the new PEC Piezo<br />

Expansion-Crest technique<br />

Luca Lancieri, freelancer in Genoa -Italy<br />

In recent years, the imperative of modern<br />

surgery has become minimal invasiveness and<br />

low biological impact. Piezo-electric surgical techniques fall<br />

perfectly into this category. In developing these procedures, I<br />

have devised a personal manoeuvre, which can be identified<br />

using the acronym PEC, Piezo Expansion-Crest. With this<br />

procedure, in one surgical session, it is possible to achieve<br />

the bone thickness necessary in order to insert one or more<br />

implants in crests which are atrophied due to post-extraction or<br />

post-traumatic infections.<br />

Today, patients are coming to our surgeries with two priority<br />

needs: dental reconstruction with a high level of aesthetic<br />

importance and the rapid morphological and functional<br />

restoration of missing teeth. It is obvious that it becomes a<br />

priority to have surgical procedures that make it possible to<br />

replace missing teeth with implants. For this purpose, it is<br />

possible to use piezo expansion-crest procedures.<br />

Let us now analyse this technique in detail: the expansion-crest<br />

makes it possible to create a permanent dilation suitable for<br />

accepting the implants, thereby making the surgical intervention<br />

quicker and more predictable. It is very important not to confuse<br />

the expansion-crest with the split-crest, two procedures which<br />

are apparently similar but totally different in terms of substance<br />

and results. The split-crest is performed by opening a partialthickness<br />

flap and using greenstick fracture of the crest and elastic<br />

deformation under tension of the disjointed bone gaps. The<br />

expansion-crest, however, is performed with a full-thickness flap and<br />

takes advantage of the viscoelastic properties of the bone, allowing<br />

a gradual separation of bone segments with permanent dilation<br />

and plastic deformation devoid of tension. The lack of tension on the<br />

implants is the key feature that makes it easier to stabilise the bone,<br />

reducing the risk of absorption and allowing a more predictable<br />

therapeutic outcome in the short, medium and long term.<br />

Operational difficulties in the execution of the separation of bone<br />

segments, especially in the jaw, are easily overcome by using the<br />

new PEC technique. As a matter of fact, the inserts that I have<br />

developed in cooperation with Silfradent, which provided the<br />

technical support necessary for their creation, make it possible<br />

to create the appropriate plastic dilation with minimum effort in<br />

the progression in depth and with the maximum preservation<br />

of the adjoining bone walls. The result is a kind of new implant<br />

tunnel site that is both a passive stabilisation and active bone<br />

proliferation site, extremely vibrant from a biological point of view<br />

for the construction of the new implant site.<br />

To this end, I have made a kit consisting of piezoelectric inserts<br />

with increasing diameter, calibrated for the most common implant<br />

procedures, with a non-working apex in order to avoid iatrogenic<br />

fenestrations and at the same time enable the tips to behave in<br />

a self-centring manner. The clinical case presented highlights the<br />

easy management of this procedure which, even in extremely<br />

critical clinical conditions, allows less experienced operators to<br />

easily insert fixtures in crests with marked atrophy which, with the<br />

usual procedures, would first require bone increase and then, at a<br />

later date, the implant could be performed.<br />

Today, using mini PEC procedures, it is possible to create<br />

implant tunnels without rotary cutters, creating biological<br />

conditions which are conducive to faster and more effective<br />

healing from both an aesthetic and functional point of view,<br />

improving the quality of the intra-operative stage and its course,<br />

satisfying today’s contextual demand for minimally invasive<br />

surgery with low biological impact.<br />

www.silfradent.com<br />

| 74 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011


HIGH PERFORMANCE<br />

REMARKABLE BALANCE<br />

Hu-Friedy’s outstanding combination of advanced technology<br />

and innovative design gives practitioners clinical precision and<br />

efficiency for a flawless performance, every time.<br />

Hu-Friedy’s superior standards for instrument quality and<br />

ongoing partnerships with industry thought leaders result in<br />

specialized instruments that help the endodontist perform with<br />

ever- increasing precision, efficiency and efficacy.<br />

INSTRUMENT<br />

MANAGEMENT<br />

ENDODONTIC<br />

INSTRUMENTS<br />

RUBBERDAM<br />

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©2011 Hu-Friedy Mfg. Co., LLC. All rights reserved.


Denar ® Mark 300<br />

Series Articulators<br />

Whip Mix Restorative<br />

Oral Health Division is<br />

pleased to announce the<br />

introduction of the next<br />

generation articulators,<br />

the Denar ® Mark 300<br />

Series Articulators. The<br />

Mark 300 Series offers<br />

interchangeability among this<br />

series of instruments and are<br />

factory set to within 20 microns of accuracy. The Mark<br />

300 Series is comprised of the Mark 330, Mark 320 and<br />

Mark 310 articulators.<br />

The features of these new articulators include:<br />

• Mark 330 is semi-adjustable with adjustable condylar<br />

inclination, progressive side shift, and immediate side shift<br />

• Mark 320 is semi-adjustable with adjustable condylar<br />

inclination and fixed progressive side shift<br />

• Mark 310 is fixed settings for condylar inclination and<br />

progressive side shift<br />

• All are compatible with the DenarSlidematicfacebow<br />

• All have positive centric latch that allows the upper and<br />

lower members to be separated or positively locked<br />

together in centric relation<br />

• All have built-in magnetic mounting system<br />

• All have unobstructed lingual access<br />

www.pirotrading.com<br />

Jet Carbides<br />

from Beavers<br />

For over 100 years Beavers <strong>Dental</strong> has been providing the<br />

quality and performance you’ve come to expect. All Jet<br />

Carbides are manufactured using a high grade Tungsten<br />

Carbide with the tolerance on each shank adjusted to ensure<br />

a positive non-slip fit into any handpiece. Jet Carbides are<br />

produced in our Rotary Technology Innovation Center using<br />

the very latest in equipment and are subjected to vigorous<br />

quality control to comply to the most exacting standards. The<br />

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Whitening Lamp 2<br />

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The new WHITEsmile ® Whitening<br />

LAMP is designed for even more<br />

advanced in-office tooth whitening. The Blue<br />

LED technology with high intensity spectrum<br />

light 465nm wavelength and an output of<br />

30.000 mW/cm² (3 LED’s, total of 30 W)<br />

allows safe and effective tooth whitening<br />

treatments. No harmful ultraviolet light and<br />

heat development ensures patient safety and<br />

comfort and therefore decreases the risk of<br />

developing tooth sensitivity.<br />

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CrosstexSecureFit<br />

CrosstexSecureFit masks meet FDA requirements for ASTM*<br />

F2100-11 Performance Class Specifications. ASTM material<br />

testing standards include mask performance requirements for<br />

fluid resistance, filtration value, breathability and flammability<br />

of mask materials. ASTM classifications include three levels of<br />

protection, with each level relating to the ability of the material<br />

to provide fluid resistance and barrier protection for the wearer.<br />

Crosstex offers a wide variety of mask designs, fit and filtration<br />

to match the protection needs for each procedure or risk level,<br />

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odorless, latex-free, fiberglass-free, with comfortable<br />

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offer a soft tear-resistant white inner layer.<br />

G-Files <br />

NEW rotary NiTi glide path<br />

instrumentation!<br />

www.pirotrading.com<br />

Glide path development is an essential but time-consuming<br />

step in endodontic treatment.<br />

G-Files are based on an innovative design to help the<br />

clinician safely save time in endodontic procedures. The<br />

superior cross-section of the G-Files combines efficiency<br />

and innovation. Along the length of the instrument, the<br />

G-File has cutting edges on three different radiuses leaving<br />

a large and efficient area for upward debris removal.<br />

Used after hand files have measured working length,<br />

G-Files safely enlarge the glide path in preparation for RCT<br />

with rotary instrumentation system.<br />

Avantages:<br />

• Superior flexibility due to their small instrument diameters<br />

(n° 12 and n° 17) and their slight .03 taper<br />

• Non-working (safety) tip<br />

• Electro-polished to optimize their efficiency in apical<br />

progression while aiding in upward debris removal.<br />

• Enhanced circulation of the irrigation solution beginning<br />

from the initial phase of treatment<br />

• Quickly and safely enlarge the canal passageway to the apex<br />

www.micro-mega.com<br />

| 76 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011


IRAQ<br />

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Two Minutes with<br />

Prof. M. Sherine<br />

Elattar<br />

Mohamed Sherine Ibrahim Elattar was born in Alexandria Egypt, April 18 th ,<br />

1955. He went to the British boys school, followed by Ramleh secondary school,<br />

then the Faculty of Dentistry at Alexandria University. Prof. Elattar has only one<br />

brother; Shamel. His late father was the first graduate from Alexandria <strong>Dental</strong><br />

School, where the class at that time comprised of only two students. He saw in his<br />

late father an inspiration and always wanted to accomplish what he didn’t do as<br />

a dentist. He was appointed as a clinical instructor at Alexandria <strong>Dental</strong> School,<br />

and then got married to his wife Nermine, while going through his master’s<br />

degree. He believed that each of us should try his utmost to be unique in his field;<br />

therefore he went further to gain higher clinical training program in Pittsburgh,<br />

PA, USA. Nowadays, he is in the process of putting the final fine touches on his<br />

new book : “ HOW TO BECOME A UNIQUE DENTIST” which includes lots of<br />

inspirational tips & hints to young dentists in addition to sharing his clinical up to<br />

Profile<br />

date experience skills with the readers<br />

Prof. Mohamed Sherine Ibrahim Elattar<br />

BDS, MSc, PhD Prosthodontics<br />

• President of AOIA<br />

• Diplomat, ICOI, Section Manager, ICOI Middle-East<br />

• Ex-Dean, Faculty of Dentistry, Pharos University<br />

• Chapter Author: <strong>Dental</strong> Implantation and<br />

Technology, Nova Publishers, USA, 2009<br />

Why did you choose to be an implant dentist?<br />

I fell in love with implants, while doing my first case at my<br />

school in Pittsburgh…I saw how much implants changed<br />

my patient’s life<br />

What are the best/worst aspects of your job?<br />

Stress, as you do your best to satisfy your patients, and try<br />

to do a perfect job all the time. It’s never easy to reach<br />

perfection, and it would be great if you are close<br />

Where do you live?<br />

Alexandria, Egypt<br />

What do you drive?<br />

A beautiful (and I mean it) Chinese car<br />

What drives you?<br />

Love to all my surroundings<br />

What’s your favorite food?<br />

kofta<br />

What’s your hobby?<br />

Dentistry and football<br />

What’s your favorite film?<br />

Mr. Bean (going for a holiday)<br />

Favorite holiday destination?<br />

Elgona, hurgada, Egypt<br />

What inspires you?<br />

A real smile of appreciation from a student, colleague or<br />

a patient<br />

What really annoys you?<br />

A bad case that I did leading to an unsatisfied patient<br />

What keeps you awake at night?<br />

A treatment plan for a tough case<br />

What makes you smile?<br />

A family gathering with my wife, daughters and their husbands<br />

What is your best characteristic?<br />

My mother always tells me that I am an unusual person. I take<br />

the best part of everybody and everything, ignoring the bad<br />

parts… easily satisfied<br />

Worst fault?<br />

Worrying too much about other people<br />

Can you describe yourself in three words?<br />

Simple, loving and sincere<br />

What do you do to relax?<br />

Stay alone, watch a funny movie<br />

If you weren’t a dentist, what would you have liked to<br />

have been?<br />

Restaurant owner<br />

Do you read and recommend <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong><br />

regularly?<br />

II honestly SMILE when I receive each new edition<br />

What would be your motto in life?<br />

Don’t look for money, just do your work and money will look for<br />

you<br />

| 78 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011


Getting to the root of the problem.<br />

As a world leader in the micro-design of Endo instruments, precision is our business. Our<br />

Revo-S NiTi rotary system takes precision to new levels. With an easy 1-2-3 sequence,<br />

the Revo-S NiTi system features a finely crafted, asymmetrical cross-section for increased<br />

flexibility. The snake-like movement of the instrument within the canal reduces the stress<br />

on the file and minimizes the risk of separation. Easy, effective and unlike anything else.<br />

MICRO-MEGA ® Revo-S <br />

Join the REVOlution at www.revo-s.com<br />

Revo-S is a registered trademark and “Your Endo Specialist” is a trademark of MIcro-Mega Ltd.


21 - 24 September 2011 | Dbayeh, Lebanon<br />

BIDM & DGZI 2011<br />

Prepared by Dr. Ronald Younes<br />

The Beirut International <strong>Dental</strong> Meeting 2011 (21<br />

st Annual<br />

Scientific Congress of the Lebanese <strong>Dental</strong> Association) was<br />

held in Beirut, Lebanon at the Congress Palace – Dbayeh<br />

from 21 till 24 September 2011. The LDA also collaborated<br />

with the German Association of <strong>Dental</strong> Implantology (DGZI)<br />

for this global congress and merged the 8th Arab-German<br />

Implantology meeting with the BIDM 2011, therefore<br />

holding it simultaneously in the same venue.<br />

The BIDM 2011 featured more than 120 scientific sessions<br />

facilitated by nearly 100 speakers, hailing from American,<br />

European and Arab countries, in addition to Lebanese<br />

lecturers, covering a wide array of specialized subjects<br />

within the numerous dental disciplines.<br />

The four-day Scientific Program, entitled<br />

“Exploring the<br />

evidence”, focused on treatment planning as a means<br />

of addressing the challenges commonly faced by dental<br />

clinicians – how to reach<br />

“a patient’s wish” and “the perfect<br />

result”. The world-renowned speakers offered pragmatic<br />

solutions and shed light on state-of-the-art techniques for<br />

issues ranging from simple day-to-day clinical obstacles to<br />

complex specialized demanding cases, making this congress<br />

the most scientifically advanced in the Middle-East.<br />

8 Pre-congress ‘step-by-step’ courses and hands-on<br />

workshops took place on Wednesday September 21 st at<br />

the Congress Palace during which the participants got to<br />

experience first-hand some of the latest innovations in the<br />

world of dentistry.<br />

More than 2300 delegates and 4.000 visitors from around<br />

the world attended the 2011 Beirut International <strong>Dental</strong><br />

Meeting, benefiting from 4 parallel ongoing conferences in 4<br />

different halls at any given time, a wide range of attractions<br />

including multiple oral sessions, 4 live video transmissions,<br />

research sessions in Clinical and Basic Research, a young<br />

podium where post-grad students got to present their cases.<br />

More than 200 international and local exhibitors occupied<br />

a commercial exhibition space of more than 3000 square<br />

meters in total throughout the period of the congress with<br />

products covering most of the dentists’ needs.<br />

| 80 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011


The LDA announced the dates for the BIDM<br />

2012 (very promising scientific program),<br />

which will be held in collaboration with the<br />

French <strong>Dental</strong> Association and the FDI World<br />

<strong>Dental</strong> Federation from the 19 th till the 22 nd<br />

of September 2012 at the Congress Palace –<br />

Dbayeh, Beirut, LEBANON<br />

For more info, please visit the BIDM official<br />

website: www.bidm-lda.com<br />

<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011| 81 |


Come visit us at AEEDC 2012 at our Piro Trading booth # 206 - 212 & 221 - 227


CHOICE 2 Veneer Cement<br />

Choice 2 is a light-cured veneer luting cement designed<br />

specifically for superior color stability and esthetics.<br />

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offered in a range of shades which mimics the natural dentition<br />

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Z-PRIME PLUS<br />

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For more information email intl@bisco.com or visit www.bisco.com<br />

Building <strong>Smile</strong>s From The Bottom Up


27 October 2011 | Dubai, UAE<br />

2011<br />

3<br />

rd Aesthetic Dentistry<br />

MENA Awards<br />

The Aesthetic Dentistry MENA Awards 2011 is one unique completion in which dentists from 12 countries compete<br />

with their professional treatment achievements. 96 clinical cases have been submitted and judged by independent Jury<br />

panel form 6 countries.<br />

Dr. Ajay Juneja from UAE won two categories as best case in Cosmetic Aesthetic and Multidisciplinary, while Dr.<br />

Thamer Theeb of Jordan won the “I Love My Dentist” award, this award was chosen by the public out of six finalists<br />

from a total of 222 dentists representing 21 countries. The six finalists were chosen by the public who casted 5,800 votes.<br />

“These awards are the highlights of the work of the dental profession in the Middle East and other countries,” explained<br />

CAPP managing director Dr. Dobrina Mollova, organizer of the 3rd <strong>Dental</strong>-Facial Cosmetic International Conference.<br />

Dr. Aisha Sultan, head of the <strong>Dental</strong> Department of the Ministry of Health and president of Emirates <strong>Dental</strong> Society,<br />

commented: “The MENA award is the first award in the region and the world that aims to appreciate and recognize<br />

the skills of dental practitioners. Today and for the third year in a row, this award has become a very well known event<br />

amongst dentists in Asia, Africa and the Middle East.”


28 - 29 October 2011 | Dubai, UAE<br />

3232<br />

rd nd <strong>Dental</strong> - Facial Cosmetic<br />

International Conference<br />

The organizers, CAPP and Emirates <strong>Dental</strong> Society achieved for the 3<br />

rd time great record of attendance during the DFCIC 2011, and<br />

established a reputation as the industry’s leading international conference. Jumeirah Beach Hotel hosted 756 participants in an elegant<br />

atmosphere.<br />

Bringing together industrial leaders and professional practitioners, the conference not only delivered extensive scientific knowledge<br />

from across the globe but gave way for an excellent opportunity to present the latest advancements and developments within the Facial<br />

Cosmetics practice.<br />

The 3<br />

rd dental Facial not only opens the door to discussion and learning for this knowledge hungry region but allows the participants<br />

to build their skills and use the opportunity for networking and sharing experiences in the application of technology throughout the<br />

learning cycle - from primary and secondary education through to professional development and lifelong learning.<br />

The international event brought together the best experts, speakers and specialists in the different fields of dental and facial cosmetic<br />

from Middle East, UK, France, Germany, Switzerland, Italy, Norway and Austria. Participants were extremely happy with an excellent<br />

program and highly reputable speakers. This was proven from participants’ feedback that the sessions they attended were greatly<br />

appreciated. This was based on the evaluation forms from all participants, showing an average score of 4.1 out of 5 for informative<br />

program and Lectures.<br />

A <strong>Dental</strong> Technician Parallel Session was organized at the same time of the conference, where 47 participants joined the conference<br />

from the Lebanese <strong>Dental</strong> Laboratories Association.<br />

The conference hosted as well the first “Arab <strong>Dental</strong> Laboratory Union” Meeting to discuss future plans.


AUSGABE 1.2010<br />

Meet us at AEEDC<br />

Hall 7 booth 56<br />

Bovine Bone<br />

Straight Implant<br />

SLS-Straight Implant<br />

Synthetic Bone<br />

Tapered Implant<br />

Pericardium Membrane<br />

Sinus-Lift Implant<br />

Collagen Membrane<br />

Soft-Bone Implant<br />

Soft Tissue Graft<br />

<strong>Dental</strong> implants<br />

Collagen Fleece<br />

Collagen Cone<br />

Regeneratives<br />

Connecting the pieces<br />

Looking for<br />

Distributors in Middle East<br />

Dentegris Deutschland GmbH<br />

Grafschafter Straße 136 | DE-47199 Duisburg<br />

Mail: info@dentegris.de | www.dentegris.de


D.T. LIGHT-POST ® X-RO ®<br />

ILLUSION <br />

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The first and unique dental implant<br />

in the world fabricated with<br />

Direct Laser Metal Forming technique<br />

by fusion of titanium microparticles !<br />

Laser forming methods allow the<br />

fabrication of implants with a very<br />

compact core and an isoelastic<br />

surface, which replicates the bone<br />

spongy geometry.<br />

The tridimensional network<br />

of the surface, constituted by<br />

interconnected cavities, promotes<br />

faster bone formation*.<br />

*References available upon request<br />

The 16 th UAE International <strong>Dental</strong> Conference<br />

& Arab <strong>Dental</strong> Exhibition<br />

See you in Dubai<br />

booth n. 318<br />

Jan 31 st – Feb 2 nd 2012<br />

Dubai International Convention & Exhibition Centre (DICEC)<br />

LEADER ITALIA srl via Aquileja 49, 20092 Cinisello B. MI ITALY<br />

ph +39 (0)2 618651 - fax +39 (0)2 61290676<br />

www.leaderitalia.it - export@leaderitalia.it


25 - 28 October 2011, Cairo - Egypt<br />

15<br />

th<br />

International<br />

EDA Congress<br />

The 15<br />

th International EDA Congress has ended on a very high note. It has exceeded all<br />

our expectations and reached a very high level of participation and attendance with over<br />

120 Lecturers and over 6200 attendants.<br />

This being the first <strong>Dental</strong> Congress to be held after the Egyptian revolution last January,<br />

and amidst the turbulent and unsettled atmosphere prevailing since, it was feared<br />

that many participants would be reluctant to make the trip and take the risk in such<br />

circumstances, but fortunately, this has proved not to be the case, and those who came<br />

never regretted making the trip.<br />

All 17 workshops, pre-congress, during the congress and post-congress were fully booked<br />

and attended. The attendants were fully satisfied and full of praise for the organizing teams.<br />

For the first time in Egyptian <strong>Dental</strong> Congresses, there has been a live transmission<br />

Via Satellite of a surgical operation in the Main Hall, which was highly attended and<br />

enthusiastically received.<br />

The accompanying trade exhibition was again a very successful one, and the exhibition<br />

area in the Intercontinental City Stars Hotel (3800m<br />

2 ) was a very spacious one and<br />

enabled all traders to be with us.<br />

The next EDA International <strong>Dental</strong> Congress will be held on the 6<br />

th of November 2013,<br />

when we hope to see you all again as well as many more who did not attend this<br />

Congress. Thank you all very much indeed, and see you in two years time.


17 November 2011, Amman - Jordan<br />

1<br />

st <strong>Smile</strong> <strong>Dental</strong> Symposium<br />

“<strong>Dental</strong> Implants: Is Quicker Always Better?”<br />

<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> in co-operation with the scientific committee in the Jordan <strong>Dental</strong> Association launched its<br />

1 st <strong>Smile</strong> <strong>Dental</strong> Symposium on Thursday 17<br />

th November 2011 in Amman-Jordan. This symposium aimed to look<br />

into one of the advanced topics in dental implantology: The Ttiming in Implant Dentistry. This scientific event hosted<br />

a group of prominent implant speakers with each of them presenting the up-to-date evidence based and clinical<br />

tips and hints on implant placement in post extractive sockets and timing of loading dental implants; Dr. Hassan<br />

Maghaireh from the University of Manchester, Prof. Marco Esposito, the Editor-in-Chief of The European <strong>Journal</strong><br />

of Oral Implantology, Prof. Alexandre Khairallah from the Lebanese University and Prof. M. Sherine Elattar, the<br />

President of The Alexandria Oral Implantology Association.<br />

This one-day event featured a high-quality scientific program along with an up-to-date and advanced dental show.<br />

91% of delegates rated the symposium ‘excellent’, 97% of delegates agreed that this symposium had provided them<br />

with evidence based and clinical tips which they can apply in their day to day dental implant practice. All of the<br />

delegates confirmed that they would recommend this symposium to their friends and colleagues.<br />

The day started with Dr. Maghaireh<br />

who highlighted different clinical<br />

scenarios where the timing of the<br />

implant insertion and the incorporation<br />

of the superstructure play an essential<br />

role for the overall treatment outcome.<br />

He also illustrated clinical philosophies,<br />

protocols, tips and hints aiming to<br />

help dentists to achieve predictable<br />

highly aesthetic results in implant dentistry. Delegates were<br />

shown how to turn time into an ally rather than an enemy.<br />

Dr. Maghaireh also covered the clinical pros and cons of<br />

immediate, early and delayed immediate placement in his<br />

second lecture and went on his third lecture to present the<br />

various loading protocols in implant dentistry, illustrating<br />

various clinical cases on each technique.<br />

Prof. Esposito, in return presented<br />

the most up to date systematic reviews<br />

he conducted on placing dental<br />

implants in fresh extraction sockets<br />

(Immediate, Immediate-Delayed<br />

and Delayed Implants) and timing of<br />

restoring the dental implants with the<br />

final prosthesis. He discussed in his<br />

two lectures the significant difference<br />

between various clinical approaches in connection with the<br />

implant treatment. Delegates had the opportunity to discuss<br />

the random controlled trials conducted in the last three to five<br />

years on timing and loading of dental implants.<br />

Prof. Khairallah presented his lecture:<br />

“The Importance of 3D Radiographic Input<br />

in Planning Advanced Cases” which was<br />

specially prepared for this symposium and<br />

presented for the first time at this advanced<br />

implant symposium. Pof. Khairallah<br />

presented a series of radiological and<br />

technological enhancement showing<br />

all the benefits that a clinician can get<br />

during planning for immediate implant(s) placement surgery<br />

and furthermore, in making a decision on the timing of fitting<br />

prosthetic superstructure. Delegates were also given a unique<br />

opportunity to develop their skills in reading and analyzing Cone<br />

Beam CT scans and the various 3D planning software.<br />

Last, but not least was with Prof. Elattar,<br />

who is the author of several articles<br />

addressing the timing of implant insertion<br />

and loading and the founder of a new<br />

definition: ”Early Osteotomy “. In his lecture,<br />

Prof. Elattar focused on the prosthetic<br />

challenges which might face the dentist<br />

while restoring an immediate loading<br />

case in the aesthetic region. He presented<br />

clinical situations that would frequently face most practitioners,<br />

and would ultimately achieve better aesthetics if treated with<br />

immediate loaded implants. Prof. Elattar, who is in the final stages<br />

of publishing his new book; “ HOW TO BECOME A UNIQUE<br />

DENTIST” gave our course delegates some of his inspirational<br />

clinical and practice management tips in addition to sharing his<br />

clinical up to date experience skills which were very well received.<br />

| 92 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011


In the evening, the symposium delegates celebrated the<br />

social event – “<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> 5 th anniversary” at the<br />

Gala dinner party which took place at the Landmark hotel<br />

in Amman. We are proud at <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> that this<br />

anniversary celebration took place under the patronage of<br />

the president of the Jordan <strong>Dental</strong> Association; Dr. Azem<br />

Qadoomi, who has exchanged trophies and certificates<br />

with the speakers and the editorial team of <strong>Smile</strong> <strong>Dental</strong><br />

<strong>Journal</strong>. <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> is also delighted to have<br />

the president of the scientific committee in the Jordanian<br />

<strong>Dental</strong> Association; Dr. Mohammad Sartawi, and the<br />

president of the Palestinian <strong>Dental</strong> Implant Society; Dr.<br />

Marwan Al-Qasem among our honorary guests. The<br />

symposium was also well supported by dental and local<br />

private companies who have sponsored the prizes for the<br />

quiz show during the Gala dinner. So many presents were<br />

awarded to the course delegates during our 5 th anniversary<br />

celebration, some which were tickets to the 6 th CAD/CAM<br />

congress in Dubai in May 2012.<br />

<strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011| 93 |


Finally, we would like to thank the following<br />

companies for their support during<br />

organizing and planning our 1 st <strong>Dental</strong><br />

Implant Symposium:<br />

• Ferrari <strong>Dental</strong> Clinics & Labs (Inman Aligner)<br />

• Eastern Medical Laser w.l.r<br />

• Leader Italia srl (Tixos Implants)<br />

• Basamat Pharmadent<br />

• Bronze Medical Supplies Co. (BMSC)<br />

• Al-Shumukh (ImPLASA Implants)<br />

• CAPP MEA<br />

• Dara for Computers<br />

• Milano Sport<br />

• Budy Pendant<br />

| 94 | <strong>Smile</strong> <strong>Dental</strong> <strong>Journal</strong> | Volume 6, Issue 4 - 2011


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Quality<br />

Quality and guarantee of<br />

effectiveness and trouble-free<br />

process of prosthetics is the main<br />

duty of Implasa Höchst company.<br />

Research & Development<br />

Is there a limit in development of<br />

dental practice? The answer to this<br />

question opens by itself, if we take a<br />

look to the way which the Implasa<br />

Höchst company passed for 10 years<br />

in the field of the newest technologies<br />

of the cure and prosthetics of teeth.<br />

Materials & Technologies<br />

The high-quality materials +<br />

constantly improving technologies =<br />

the guarantee of our quality and<br />

your success<br />

Production Cycle<br />

ImPlasa Höchst company specialists<br />

diligently control the quality of the<br />

released production at all the stages<br />

of technological process<br />

and production.<br />

Micros<strong>copy</strong><br />

The surface of implants is prepared<br />

by unique technology of ImPlasa<br />

Höchst company, named<br />

ImPlapore, which allows to reach<br />

minimal traumatizing in the area of<br />

implant installation, and such way<br />

maximally eases the<br />

osseointegration process.<br />

The Sole Representative in the<br />

Middle East and Africa<br />

E: dr.munther@implasa.de<br />

KSA<br />

Saudi Swiss<br />

Consultant <strong>Dental</strong> Center<br />

Tel: +96638898714<br />

professor_agha@yahoo.com.ca<br />

Lebanon<br />

Kingdom Medical &<br />

<strong>Dental</strong> Instruments<br />

Tel: +961 6 426462<br />

kingdom_est@hotmail.com<br />

Syria<br />

Kingdom Medical &<br />

<strong>Dental</strong> Instruments<br />

Tel: +963 21 5732052<br />

majedajami01@hotmail.com<br />

Turkey<br />

ASYA DENTAL<br />

Tel: +902164957287<br />

gulcan_celebi@mynet.com<br />

UAE Dubai<br />

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Quality<br />

Quality and guarantee of<br />

effectiveness and trouble-free<br />

process of prosthetics is the main<br />

duty of Implasa Höchst company.<br />

Research & Development<br />

Is there a limit in development of<br />

dental practice? The answer to this<br />

question opens by itself, if we take a<br />

look to the way which the Implasa<br />

Höchst company passed for 10 years<br />

in the field of the newest technologies<br />

of the cure and prosthetics of teeth.<br />

Materials & Technologies<br />

The high-quality materials +<br />

constantly improving technologies =<br />

the guarantee of our quality and<br />

your success<br />

Production Cycle<br />

ImPlasa Höchst company specialists<br />

diligently control the quality of the<br />

released production at all the stages<br />

of technological process<br />

and production.<br />

Micros<strong>copy</strong><br />

The surface of implants is prepared<br />

by unique technology of ImPlasa<br />

Höchst company, named<br />

ImPlapore, which allows to reach<br />

minimal traumatizing in the area of<br />

implant installation, and such way<br />

maximally eases the<br />

osseointegration process.<br />

The Sole Representative in the<br />

Middle East and Africa<br />

E: dr.munther@implasa.de<br />

KSA<br />

Saudi Swiss<br />

Consultant <strong>Dental</strong> Center<br />

Tel: +96638898714<br />

professor_agha@yahoo.com.ca<br />

Lebanon<br />

Kingdom Medical &<br />

<strong>Dental</strong> Instruments<br />

Tel: +961 6 426462<br />

kingdom_est@hotmail.com<br />

Syria<br />

Kingdom Medical &<br />

<strong>Dental</strong> Instruments<br />

Tel: +963 21 5732052<br />

majedajami01@hotmail.com<br />

Turkey<br />

ASYA DENTAL<br />

Tel: +902164957287<br />

gulcan_celebi@mynet.com<br />

UAE Dubai<br />

Bright <strong>Smile</strong><br />

Medical Equipment<br />

Tel.: +971 4 4508423<br />

brightsmile.me@gmail.com

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