Thursday, 2 June 2011

Abstracts
24 th EBSO orthodontic congress
“light wire goes straight and lingual”
1 – 4 June 2011
Bad Oeynhausen, Germany

Wednesday, 1 June 2011
Pre-Congress-Course: Tip-Edge PLUS Course................................................4
Dr. Richard Parkhouse ......................................................................................4
Begg Memorial Lecture ......................................................................................5
Dr. Hans W. Booij..............................................................................................5
Cases Treated with the Tip-Edge Technique....................................................5
Dr. Fleur Admiraal .............................................................................................5
New Mechanics with the Tip-Edge Technique..................................................6
Dr. Arturo Vela Hernandez ................................................................................6
2nd Opinion - 2nd Treatment: Tip-Edge vs. Straight-Wire ..............................7
Dr. Rudy Meyer .................................................................................................7
Palatal Implants for Skeletal Anchorage in the Maxilla. Basics and Clinical
Application ..........................................................................................................8
Dr. Britta A. Jung...............................................................................................8
Aesthetic Considerations and Treatment with Innovation L...........................9
Dr. Torsten Krey................................................................................................9
Bone Anchored Molar Distalization: An Alternative for Orthognathic
Surgery? ............................................................................................................10
Hugo De Clerck...............................................................................................10
Friday, 3 June 2011
VAST- Variable Straight Wire Technique- 20 years of experience with
versatile bracket systems ................................................................................11
Dr. Svante Moberg ..........................................................................................11
Superimposition of Cone Beam CT Scans, a New Tool for 3D Evaluation of
Treatment Effects..............................................................................................12
Dr. Rania Nada................................................................................................12
3D Pictures of the Face ....................................................................................13
Dr. Sander Brons.............................................................................................13
The next step in 3D imaging: Image fusion ....................................................14
Dr. Frits Rangel ...............................................................................................14
2

Root Resorption................................................................................................15
Prof. Dr. Guy de Pauw ....................................................................................15
Biofilms in Orthodontics: Consequences, Treatment and Prevention ........17
Prof. Dr. Yijin Ren............................................................................................17
Aesthetics in Orthodontics ..............................................................................18
Ariane Hohoff ..................................................................................................18
Functional Treatment – the “Münster” Concept ............................................19
OA Dr. Thomas Stamm ...................................................................................19
Transplantation of Closed Apices: One of the Secrets of the Periodontal
Membrane..........................................................................................................20
Dr. Manfred Leunisse ......................................................................................20
Treatment with the Incognito System .............................................................21
Dr. Esfandiar Modjahedpour ...........................................................................21
Obstructive sleep apnea syndrome in children .............................................22
Dr. Hayé Remmelink .......................................................................................22
Molar Distalization with the Skeletal Pendulum K (Frog): Biomechanics,
Appliances, Case Studies ................................................................................23
Dr. Björn Ludwig..............................................................................................23
Clear Aligner .....................................................................................................24
Dr. Bruno Wilhelmy .........................................................................................24
Saturday, 4 June 2011
Ankylosis of Teeth ............................................................................................25
Johannes Berten .............................................................................................25
SNB–Swiss Nonligating Bracket–an Astonishing New Bracket to Use
Lingually and Labially: Experiences and Prospective...................................26
Dr. Jakob Karp ................................................................................................26
Post-Congress-Course: 2D Lingual Orthodontic “Hands ON” Course........27
Dr. Theophil Gloor ...........................................................................................27
3

Wednesday, 1 June 2011
Pre-Congress-Course: Tip-Edge PLUS Course
This one day lecture course gives a comprehensive introduction to the Tip-Edge Plus appliance
by the author of the definitive textbook Tip-Edge Orthodontics and the Plus Bracket (Mosby). As
such it will provide the clinician with a solid foundation on which to pursue subsequent study
towards clinical excellence, in which Plus sets new standards, particularly in the treatment of
difficult malocclusions, with results attainable with less effort on behalf of the patient and the
orthodontist.
The lectures illustrate the principles behind the appliance, with comparison to conventional
straight wire appliances. Each treatment stage will be fully described. Case illustrations
throughout will demonstrate the versatility of the appliance in the treatment of different
malocclusion types, highlighting the many advantages over conventional bracket systems.
Dr. Richard Parkhouse
Dr Richard Parkhouse qualified at University College Hospital, London, with a
double honours BDS degree. He subsequently studied orthodontics at the
Eastman Dental Institute, London obtaining D.Orth and FDS RCS. He was
Consultant Orthodontist at Glan Clwyd Hospital North Wales from 1973 to
2005.
His treatment of severe malocclusions with the former Begg appliance was
acclaimed internationally, prior to his adoption of the Tip-Edge appliance in
1988. Since then, he has been at the forefront in the development of the highly
innovative Tip-Edge technique, combining the advantages of ease of tooth
movement with precision finishing demonstrably beyond the capability of
conventional bracket systems. In recognition of this, he has been invited to
present courses and lectures in 27 countries around the world, including World Orthodontic
Congresses and AAO meetings.
In 2010, he was awarded an Honorary Fellowship of the Royal College of Surgeons, Edinburgh.
4

Thursday, 2 June 2011
Begg Memorial Lecture
Dr. Hans W. Booij
CV J.W.Booij (1954)
1971-1977 Study in dentistry; University of Utrecht
1977-1979 Dental officer Royal Dutch Navy
1979-1983 Orthodontic training; University of Utrecht
1983-present Orthodontic office; Gorinchem
Professional activities
-President of the EBS(1997, Maastricht)
-Secretary of the "Nederlandse Vereniging voor Orthodontische Studie"(1985-
2000)
-President of the study club DMO(2001-present)
-Secretary of the Booy Foundation (2002-present)
-Active member of the Angle Society of Europe
Cases Treated with the Tip-Edge Technique
Dr. Fleur Admiraal
Fleur Admiraal
Orthodontist.admiraal@gmail.com
For my dental studies I moved in 1998 from the Netherlands to Belgium.
My dental qualification was completed in 2003 at the University of Ghent
Belgium.
I completed my orthodontic training programme at the University of Ghent
Belgium under the supervision of Professor Luc Dermaut in September 2007.
My research topic was infrabony pockets and orthodontic toothmovement.
From 2007-2009 I worked in different orthodontic practices in Belgium and the Netherlands.
During 2008 I completed a management training programme at the Vlerick Management School
Ghent-Leuven
My orthodontic interests are: multidisciplinary treatment (preprothetic ortho/ortho perio etc),
Lightwire techniques like Tip Edge Plus, adolescent and adult orthodontics, and lingual
orthodontics with the Incognito technique.
Since autumn 2008 I´ve started my orthodontic private practice in Ghent.
(orthodontist.admiraal@gmail.com)
5

New Mechanics with the Tip-Edge Technique
PLUS brackets are programmed to move teeth in one direction only at the start, and to finish
them with automatic straightening for total three-dimensional control. They also allow us to easily
individualise each case, maintaining strict vertical control from the very first stages for remarkable
freedom of movement. This way, the bite opens much faster; anchorage requirements are
minimal; elastic effectiveness is multiplied, and finishing is excellent with very little effort required.
The combination of low friction PLUS brackets and new generation super-elastic wires allows us
to apply very light forces and simplifies every phase of treatment. Using solid biomechanical
principles, we introduce a new simplified protocol, with especial arch forms, shapes and
sequences. As a result, the need for extractions is greatly reduced, and most importantly,
treatment time and the overall number of visits are significantly reduced.
Dr. Arturo Vela Hernandez
Dr. Arturo Vela-Hernández is an Assistant Professor for the Masters
Program in Orthodontics at the Valencia University School of Dentistry
(since 2004), annual guest Lecturer for the Postgraduate Program in
Orthodontics at the NCA University in Chapell Hill, USA (since 2007), as
well as being guest Lecturer at various Universities in Europe. He is the
author of numerous journal articles, abstracts, book chapters and
lectures, and has addressed the Annual Meeting of the Spanish
Orthodontics Society. He has been an invited speaker at the Annual
Congress of the Italian, Mexican, Egyptian and Syrian Orthodontic
Societies, and was also a guest speaker at the WFO meeting in Sydney
2010. Dr. Vela received his DDS degree from Pais Vasco University School of Dentistry. He holds
a Cum Laude PhD from Navarra University Medical School and earned his Certificate in
Orthodontics from Oviedo University School of Dentistry. He received the “JM Moriyon” Award
from de Spanish Society of Orthodontics in 2008. Dr. Vela has developed his own low-friction
technique with Tip-Edge Plus bracket, having clinical experience with more than 14,000 cases. Dr.
Vela has conducted more than 50 training courses, specially about the Herbst Occlusal Hinge,
and about his technique.
6

2nd Opinion - 2nd Treatment: Tip-Edge vs. Straight-Wire
Keywords: Second Opinion, Extraction-Nonextraction, Tip-Edge PLUS Orthodontics
A second opinion is often sought by patients who have had insufficient orthodontic treatment. The
crucial points, when considering a second therapy, are treatment time, orthodontic technique and
costs. In assessing the initial results, it may be stated that treatment times have often been much
too long, that the appliances have not been suitable or effective and that the question of
“extraction or nonextraction” has not been sufficiently answered. Choosing the “Tip-Edge" method
for re-treatment could provide valuable answers and prevent subsequent failures.
Zusammenfassung
Kieferorthopädie-Patienten, die mit ihrem Behandlungsresultat nicht zufrieden sind, suchen meist
bei einem anderen Behandler eine „Second Opinion“. Bei dieser Konsultation muss abgewogen
werden, was dem Patienten an apparativem Aufwand, an Zeit und an Kosten nach der
enttäuschenden ersten Erfahrung noch zugemutet werden kann. Die generelle Feststellung bei
diesen Beurteilungen ist, dass die erste Therapie oft viel zu lange gedauert hat, dass zu viele und
unnütze Apparaturen verwendet worden sind und dass nicht klar auf Extraktion-Nichtextraktion
entschieden worden ist. Eine Zweitbehandlung sollte möglichst kurz, effizient und schonend sein.
Anhand von klinischen Beispielen werden Lösungen für häufig angetroffene Misserfolge
aufgezeigt. Für die zweite Behandlung wird „Tip - Edge Orthodontics“ eingesetzt.
Dr. Rudy Meyer
Dr. Rudolf Meyer, Tivolifabrik Orthodontic Center Thun-Switzerland
Rudy Meyer graduated in 1971 from the School of Dental
Medicine, Universitiy of Berne (winning the “Prix Louis
Metzger Award”) and had his first training as a General
Dentist in several private practices. His chirurgical and
orthodontic training began at the Department of Oral Surgery
and Department of Orthodontics (Prof. Paul Herren) in 1974.
In 1981 he got the Specialist Qualification in Orthodontics
and opened his own private office in Thun. He became a
Regular Member of EBSO in 1979. From 1975 - 2010 he
attended BEGG & Tip-Edge Courses in Europe and the
U.S.A. and was appointed “Tip-Edge Teacher” in 2007 by
TP-Orthodontics, La Porte, Indiana. During 2007 - 2009 he was nominated President of EBSO
and organized the Congress in Thun. Rudy Meyer publishes and teaches in Seminars on
Orthodontics and gives “Tip-Edge Plus” Courses in Switzerland.
7

Palatal Implants for Skeletal Anchorage in the Maxilla. Basics
and Clinical Application
Device design of palatal implants, preoperative diagnostic measures, insertion and removal
procedures, potential suprastructure application, success rate, biomechanical anchorage facilities,
comparative risks and complications as compared to other skeletal anchorage devices have to be
well known if skeletal anchorage is intended to be used in the maxilla. This can help in deciding
which skeletal anchorage device should be selected in the individual case. The lecture will focus
on basics as well as clinical aspects of the above mentioned criteria.
Learning objectives:
Why palatal implants for skelettal anchorage?
Success rate of palatal implants?
Anchorage facilities with palatal implants?
What are multifunctional anchorage tasks?
Dr. Britta A. Jung
Dr. Britta A. Jung received her undergraduate training in dentistry from the
University of Berlin and Erlangen. Between 2000-2003 she worked in a
general dental practice and completed her doctorate in dentistry at the
Charité- University Medicine Berlin in 2004. 2003-2006 Postgraduate
training in orthodontics in Lower Saxony and Mainz (Univ.-Prof. Dr. med.
Dr. med. dent. Heiner Wehrbein, Department of Orthodontics, University
Hospital Mainz). 09/2006 Consultant for Orthodontics; 09/2006-present:
Research Fellow, Department of Orthodontics, University Hospital Mainz;
11/2008 - present Senior Physician, Department of Orthodontics,
University Hospital Mainz (Head: Prof. Dr. med. Dr. med. dent. H.
Wehrbein). She maintain scientific cooperation with the University of Aachen, Dresden,
Greifswald, Bochum and Berne and is the principal investigator of several clinical studies in the
field of skeletal anchorage.
Member of the European Orthodontic Society (EOS), Deutsche Gesellschaft für Kieferorthopädie
(DGKFO), International Association for Dental Research (IADR), Deutsche Gesellschaft für Zahn-,
Mund- und Kieferheilkunde (DGZMK), Arbeitskreis für Oralmedizin und Pathologie (AKOPOM),
Arbeitsgemeinschaft Röntgenologie (ARö), Deutscher Interdisziplinärer Arbeitskreis für Lippen-,
Kiefer- Gaumen-spalten/Kraniofaziale Anomalien (GCPA) Research fields: Clinical trials and
skeletal anchorage in orthodontics, cephalometry and growth, analysis of relevant prognostic
factors influencing the treatment when using palatal implants, basic research
8

Aesthetic Considerations and Treatment with Innovation L
Theme:
Inovation-L MTM:
Esthetic Solution with a simple lingual self-ligating technic.
I will show you an esthetic and easy solution how to treat orthodontic patients “invisible” with the
simple lingual self ligating bracket system In Ovation-L-MTM.
We use this lingual technic in the same way as the buccal technic. After placing the brackets on a
malocclusion blaster model we bond the brackets into both arches indirectly using a silicon tray.
We adapt special lingual arch wires directly intraoral and make them fit individually for each
patient. Because of the self ligating system the archwires are fastly tied.
The main aim by choosing a particular bracket system is to cut the chair-time and keep it as
simple as possible. That’s a main benefit of a self-ligating-system. The second aim is to take over
the responsibility of the orthodontic treatment. Using the In Ovation-L-system the orthodontist
himself is and stays the boss of treatment decisions at anytime.
Dr. Torsten Krey
1. 1989-1995 Studium der Zahnheilkunde an der Justus Liebig Universität in Giessen
2. 1995-1997 kieferorthopädischer Weiterbildungsassistent in der Praxis Dr. B. Toll in
Kronberg/Ts.
3. 1997-1998 kieferorthopädischer Weiterbildungsassistent in der Zahnklinik in Frankfurt am
Main (Carolinum bei Prof. Dr. Schopf)
4. 1998 Promotion an der Justus Liebig Universität in Giessen
5. Praxisgründung in Herborn (Hessen)
6. 2005 Gründung des kieferorthopädischen Fachlabors „life-dental“ und Referent im In-
und Ausland
7. 2006 Praxisgründung in Westerburg (Rheinland-Pfalz) in Kooperation mit ZA Dr. Reusch,
ehem. Präsident der DGÄZ.
8. 2007 Referent für die Fa. GAC mit Spezialgebiet „Lingualtechnik – In-Ovation-L“
9

Bone Anchored Molar Distalization: An Alternative for
Orthognathic Surgery?
The main advantage of skeletal anchorage by modified miniplates is their fixation at a
distance from the dental arch. It makes them very suitable for distal movement of the complete
upper arch in class II treatment without extraction of premolars. This may be useful for treatment
of class II cases showing relapse of orthodontic treatment where previously premolars have been
removed. Furthermore it can be a good alternative for treating adult class II subdivision 2
malocclusions without extractions of premolars instead of a combined orthodontic-surgical
approach. Two types of biomechanics can be used: sliding of the teeth along a light arch wire or
‘en masse’ retraction of the whole dental arch at once using nearly full size rectangular wires.
Treatment efficiency will depend mostly on control of the vertical dimension during distalization of
the lateral segments. Bite opening can be obtained by sequential bonding or by using intrusion
auxiliaries. Appropriate step by step biomechanics and treatment outcome will be discussed and
illustrated by many clinical cases.
Hugo De Clerck
Hugo De Clerck is a graduate of the Rijksuniversiteit Gent’s orthodontic
program, he received his PhD in 1986 and he maintained a private practice
in Brussels for 22 years. He received the European Research Essay Award
in 1988. He has been Professor and Chairperson of the Department of
Orthodontics at the Université Catholique de Louvain from 1989 to 2006.
Currently he’s Adjunct Professor at the University of North Carolina at Chapel
Hill. He’s a former President of the Belgian Orthodontic Society and Fellow
of the Royal College of Surgeons of England. His main research interests
are in skeletal anchorage, biomechanics and orthopedics. He lectured
extensively on these topics throughout the world.
10

Friday, 3 June 2011
VAST- Variable Straight Wire Technique- 20 years of experience
with versatile bracket systems
VAST technique allows you to choose where you want low friction, easy sliding, controlled tipping
or bodily control and high friction. Without complex arch wire bending you can get the anchorage
where it is required. Extra oral appliances are rarely used. The treatment makes use of basic
biomechanical principles for sagittal and vertical control. The theoretical and mechanical basis
originates from the Begg- and Straight-Wire techniques as well as the segmented technique
(Burstone) and the Bioprogressive technique. An overview of the V A S T technique will be
presented. The presentation will include the results of a comparative study on VAST and Straight
Wire in Class II, deep bite cases. The development of the bracket systems have been an ongoing
process during these 20 years.
No commercial interest in any of the products mentioned during the presentation.
Dr. Svante Moberg
Presently:
Senior consultant orthodontist and head of department of the orthodontic clinic,
Enköping, County Council of Uppsala, Sweden.
Lecturer and clinical supervisor, postgraduate program, Karolinska Institute,
Stockholm.
Earlier:
Lecturer and clinical supervisor, postgraduate program, Eastman Institute,
Stockholm
Private practice
Academic degrees:
L. Odont. Stockholm 1970
Specialist in Orthodontics, Eastman Institute, Stockholm 1977
Special interests:
Practice management and biomechanics
Lectures on the VAST technique:
In Austria, Germany, Holland, Italy, Israel, Spain, Singapore and Sweden.
11

Superimposition of Cone Beam CT Scans, a New Tool for 3D
Evaluation of Treatment Effects
Three-dimensional digital records are becoming more and more popular among orthodontists and
maxillofacial surgeons as the specialties progress towards a three dimensional (3D) virtual
representation of the patient for diagnosis, treatment planning and simulation. Cone Beam
Computed Tomography (CBCT) scans have been well established as a valuable tool in the
orthodontist’s and surgeon’s 3D toolkit. Superimposition of serial cephalometric radiographs has
been traditionally used for assessment of growth and treatment effects or stability over time.
Superimposition of CBCT scans is a newly introduced tool that allows three dimensional
visualization of these effects. This presentation will review the novel methods of superimposition
3D CBCT models with emphasis on voxel based superimposition; a newly developed semiautomated
registration technique.
Dr. Rania Nada
Rania Nada is currently working at the Department of Orthodontics and
Craniofacial Biology, Radboud University Nijmegen Medical Centre. She
obtained her BDS from Cairo University in 1999 and Diploma of Membership in
Orthodontics from the Royal College of Surgeons of Edinburgh in 2005. In
2006 she completed her specialty training in Orthodontics and obtained a
Master Degree in Orthodontics and Pediatric dentistry from Cairo University.
Shortly afterwards, she started her PhD at the department of Orthodontics and
Craniofacial Biology, Radboud University, Nijmegen Medical Centre and joined
the 3D Facial Imaging Group Nijmegen-Bruges. In 2010 she won the prize for
the best research presentation during the 3 rd International Congress on 3D-
Diagnosis and Virtual Treatment Planning.
12

3D Pictures of the Face
Sander Brons, Department of Orthodontics and Craniofacial Biology, Radboud University
Nijmegen Medical Centre, Nijmegen, The Netherlands
Since the introduction of X-ray cephalometry by Broadbent and Hofrath almost a century ago,
orthodontists got involved in the study of facial. Until recently two dimensional analysis of lateral
headplates was the norm and superimpositions were done on the anterior cranial base. With the
introduction of 3D imaging techniques, the main shortcoming of traditional 2D analysis is
overcome and new questions are being posed regarding the analysis to perform or the method of
superimpositioning to use. The aim of my presentation is to inform on the techniques of three
dimensional imaging with non-ionizing radiation with the focus on stereo-photogrammetry, the
application of stereo-photogrammetry in research and a recently developed method for evaluation
of facial growth in baby’s with and without orofacial clefts.
Dr. Sander Brons
PERSONALIA
Dr. Sander Brons
Van Limburg Stirumstraat 58
6535 XG Nijmegen
E-Mail: s.brons@dent.umcn.nl
Dat of birth : Vlaardingen, 3 september 1982
Nationality : Dutch
EDUCATION
1994 - 2000 : VWO
CSG Aquamarijn department Groen van Prinsterer Vlaardingen
2000 - 2005: Dentistry
ACTA Amsterdam
2007 - today: Postgraduate training Orthodontics
St. Radboud University Nijmegen
PROFESSIONAL EXPERIENCE
June 2005- July 2007: Dentist
General practice
Tandartsenpraktijk Kethelweg 103, Vlaardingen
August 2006- July 2007: Dentist
Corporation of Pediatric Dentistry, The Hague
Calandstraat 35, The Hague
Loosduinseweg55, The Hague
13

The next step in 3D imaging: Image fusion
Now that three dimensional (3D) imaging is widely used in craniofacial diagnosis, clinical and
research interests are shifting towards other applications to improve patient treatment. To get this
improvement, fusion of datasets obtained with different imaging techniques is necessary. Cone
Beam Computed Tomography (CBCT) scans provide more information than conventional x-rays.
However on inspection, the patient is hard to recognize, due to a lack of textured information.
This makes making 3D facial analysis and a correct diagnosis hard. By means of combining the
CBCT and the 3D stereophotogrammetric image of the same patient, a facial texture is added.
For orthognatic treatment planning, a good representation of the dentition is essential. The
dentition extracted from a CBCT scan is insufficient, due to artefacts and scattering. For this
purpose, digital dental casts should be integrated into CBCT scans to overcome this problem. For
orthodontic diagnosis, a relation between the soft tissues and the dentition is often useful. When
digital dental models are integrated into the 3D stereophotogrammetric image of the patient, this
relation can be realized. During this lecture, an overview will be given of the different fusion
techniques and the state of art methods used by medical teams around the world.
Dr. Frits Rangel
Personal details
Surname: Rangel
First name: Frits
Date of birth: 7 juni 1979
Nationality: Dutch
Education
August 2005 - July 2009: Orthodontics, Radboud University Nijmegen Medical Center.
September 1998 – July 2005: Dentistry, Catholic University Nijmegen.
August 1997 – August 1998: Pharmacy, University Utrecht
August 1991 – July 1997: Secondary education: VWO at the Alberdingk Thijm College
in Hilversum.
Work experience
July 2009-present: working in 3 orthodontic practices, in Hilversum, Bussum and Almere
PhD research, 2 days a week, Department of Orthodontics and
Craniofacial Biology, Radboud University Nijmegen Medical Center
Research interests
- 3D imaging
- 3D image fusion
- Treatment outcome evaluation
- Digital dental models
14

Root Resorption
Apical root resorption (ARR) is a common idiopathic problem associated with orthodontic
treatment. According to Reitan and Rygh no orthodontic tooth movement is possible without root
resorption. Fortunately, in most cases root resorption will be minor and therefore of no clinical
importance. However, moderate to severe root resorption has been reported to occur with a
frequency of 10-20 percent. Extreme root resorption (> 1/3 of the original root length) is very rare.
Several causes have been mentioned to be a factor determining resorption like biological and
mechanical factors. The purpose of this study was to investigate whether patients treated with the
Tip-Edge © appliance resulted in more ARR of the central and lateral incisors during the torquing
(3 rd stage) than the non-torquing phases (first two stages) of orthodontic treatment. The three
stages of this orthodontic technique make it possible to examine the amount of root shortening
during torque separately from the other types of tooth movement. The ARR ratio was calculated
in 31 patients (20 females and 11 males) after the non-torquing stage of treatment and after the
torquing phase by analysing peri-apical radiographs that were taken at the beginning of treatment
(T1), before the start of the torquing stage (T2) and at the end of treatment (T3). Root shortening
after orthodontic treatment was seen for 70 percent of the central and 76 percent of the lateral
incisors. After the non-torquing stage 48 percent and 53 percent of the central and lateral incisors
respectively showed already ARR. Compared with the non-torquing stage of treatment, 38
percent of the central incisors and 55 percent of the lateral incisors showed ARR during the
application of torque while 22 percent of the central and lateral incisors showed only apical root
resorption during the torquing phase. The mean ARR ratio for central and lateral incisors was the
same after the non-torquing stage of treatment, but was significantly different from a tooth with no
root resorption. After the torquing stage, the ARR ratio for the central incisors was 0.96 and for
lateral incisors 0.92. At the end of treatment the ratio was 0.89 and 0.85 respectively. This study
revealed that both the central and the lateral incisors showed comparable amounts of ARR during
the torquing and non-torquing stage of Tip-Edge treatment.
Prof. Dr. Guy de Pauw
Name: DE PAUW
First names: Guy, Arthur, Madeleine
Place & date of birth: Aalst (Belgium), May 17 th , 1962.
Academic degrees
- Dental Sciences: 1980-1985, R.U. Ghent
- Specialist in Orthodontics and Dentofacial Orthopaedics : 1985-1989, R.U.
Ghent
- Specialist in Orthodontics and Dentofacial Orthopaedics: 1994, Register of
Specialists, The Netherlands.
- PhD, University of Ghent: “Orthopaedic displacement of the maxilla”, October 10 th , 2002.
Functions at the University
1989: Full time staff member at the orthodontic department (organisation of the department,
clinical supervisor, teacher, researcher)
1993-1994: Part time (7/10) staff member
1995-2006: Part time (5/10) staff member
2006 - : Full professor and chairman of the Orthodontic Department
2006 - : Coordinator Centre of Congenital Facial Anomalies
2007 - : Dean Dental School
2007 - : Coordinator of Orthodontic Master after Master Postgraduate Programme
2008 - : Member of the Faculty of Medicine
2009- : Member of the sectorraad
15

Administrative Functions
- BBUSO (Belgian Association of University Specialists in Orthodontics): 1996-1999
- Dent-alumni RU Ghent: 1997-
- Institute of Permanent Education RU Ghent : 1998-
- Studyclub of dentists, Aalst : 1991-
- Centre of Orthodontic Study (COS)(Belgian Orthodontic Society): 1996-
- Dental School (representative of the assistant professors): 2000-2006
- Dean Dental School: 2007 –
- Member of the Commission for Recognition: 2008 -
Memberships
- BBNO
- Dent-Alumni University of Ghent
- Studyclub of dentists in Aalst
- VBT (Flemish Professional Association of Dentists)
- World Federation of Orthodontists
- European Orthodontic Society
- SPOOR (Flemish Orthodontic Society)
- Active member Angle Society of Europe
- Member Network of Erasmus Based European Orthodontic Postgraduate Programs
(NEBEOP)
16

Biofilms in Orthodontics: Consequences, Treatment and
Prevention
Summary: Orthodontic treatment is more popular than ever, and not only includes juveniles
anymore but also adults. Orthodontic appliances hamper the maintenance of oral hygiene and
provide numerous additional surfaces in the oral cavity to which bacteria can adhere and form a
biofilm. Biofilms on orthodontic appliances can cause a variety of problems on hard and soft
tissues directly surrounding the appliance, such as white spot enamel lesions and soft tissues
inflammation, compromising dento-facial esthetics after an often lengthy and costly course of
treatment. Despite preventive measures, the prevalence of biofilm-related problems in
orthodontics remains high. The aim of this presentation is to review the most prevalent sideeffects
of orthodontic treatment that can be attributed to biofilm formation and to discuss potential
treatment and preventive measures.
Prof. Dr. Yijin Ren
Dr. Yijin Ren graduated from Wuhan University, China with DDS degree in
1996, and received orthodontic training 1999-1999 from Beijing University
China with a MsC degree. From 1999-2003 she was doing PhD research and
additional orthodontic training by Prof. Kuijpers-Jagtman in the University of
Nijmegen, the Netherlands. In 2003 she obtained the PhD degree and
moved to University Medical Centre Groningen, University of Groningen the
Netherlands for further career development. In 2007 she was appointed as
full professor by the same university. In 2008 she was appointed as Chair of
the Orthodontic Department and the primary training for the orthodontic
specialist training. Dr. Ren has received a number of national and
international awards including the Best orthodontic paper in 5 years by the Dutch Orthodontic
Society (2003), Research grant by the European Orthodontic Society EOS (2004, 2007, 2009),
Outstanding Young Scientist Research Grant by Dutch Scientific Organization, Distinguished
Scientist Award - Young Investigator Award by International Association of Dental Research
IADR (2006), Best paper of the year (co-author) by Dutch Dental Journal (2007), Best poster
award (co-author) by European Orthodontic Society EOS (2008), and Outstanding Alumni Award
by Wuhan University China (2010). Dr. Ren is a Council member of World Federation of
Orthodontists, and is an active member of American Association of Orthodontics, European
Orthodontic Society and International Association of Dental Research. Dr. Ren is a member of
the Editorial Board of European Journal of Orthodontics and the Open Dentistry Journal. Dr. Ren
has published more than 60 articles in international and national peer-reviewed journals mainly in
the field of biological mechanisms of orthodontic tooth movement, biofilms in orthodontics, and
3D imaging in orthodontics etc. She has given more than 50 lectures as speakers and keynote
speakers in the european and international congresses
17

Aesthetics in Orthodontics
Beside functional aspects, aesthetics is a main issue in orthodontic therapy. As will be shown
within the scope of this lecture, the perception of aesthetics differs significantly between
laypersons, orthodontists and other dental professionals. Aesthetics in orthodontics does not only
mean „straightening teeth“ but also fitting the teeth to the face of the patient. Aesthetics in
orthodontics furthermore does not only mean aesthetic treatment results, but also treatment with
aesthetic appliances; some of these have nowadays scientifically been proven to be superior to
conventional appliances in some aspects. Advantages and disadvantages of various aesthetic
appliances will be pointed out during the course of this presentation.
Ariane Hohoff
1988-1993
Studies of dentistry (Westfalian Wilhelms University, Münster, Germany)
1993 and 1997
Scholarship of the German Academic Exchange Service (DAAD) (University
of Chiang Mai, Thailand; University of North Carolina at Chapel Hill, USA)
1994-1996
Scientific assistant at the Department of Prosthodontics (University Hospital,
Münster, Germany)
1995
Doctoral dissertation
Since 1999
Specialist of Orthodontics and Dentofacial Orthopedics
2005
Postdoctural lecture qualification (Dr. med. dent. habil)
2006
Offers of professorship (Griffith University, Australia; University Paris V, France)
Diplomate of the German Board of Orthodontics (GBO)
2008
Offers of professorship (Medical University Innsbruck, Austria; Medical Faculty of the University
of Rostock, Germany, Philipps-University of Marburg, Germany; Westfalian Wilhelms University,
Münster, Germany)
Since 2008
Master of Science in Lingual Orthodontics (M.Sc.L.O.)
Accredited Member of the European Society of Lingual Orthodontics (ESLO)
Head of the Department of Orthodontics (University Hospital of Münster, Germany)
Since 2009
Accredited Member of the German Society of Lingual Orthodontics (DGLO)
Scientific Research Fields:
Lingual orthodontics, orthognathic surgery, orofacial develpment of preterm and term infants,
treatment of patients with syndromes, handicaps and clefts
18

Functional Treatment – the “Münster” Concept
The functional treatment concept of Münster was founded in 1967 by Prof. R. Karwetzky who
proposed a new activator type of removable appliance, the so called U-Bügelaktivator (U-bow
Activator). In Karwetzky’s view the u-bow activator is a long-term consequent development of the
original activator of Andresen-Häupl with several treatment options in the early and late
deciduous dentition. During the years the Münster’s functional concept was influenced by several
clinical studies and various researchers like Prof. Ulrike Ehmer the former Head of the
Department of Orthodontics at the University of Münster and Prof. Rolf Fränkel with whom Prof.
Ehmer maintained a deep personal and professional friendship for many years. As a result the
today’s concept consist of different appliances and, to speak with Karwetzky’s words, is a longterm
consequent and research driven development of the original u-bow activator treatment
concept.
OA Dr. Thomas Stamm
1992: German „Staatsexamen and Approbation als Zahnarzt“; 1993-96: Threeyear
period of activity at the Department of Prosthodontics, University of
Münster. The clinical focus was on the treatment of patients with CMD; 1996:
Awarded doctor’s degree. 1996: Appointment to the Department of
Orthodontics, University of Münster. Fachzahnarztprüfung für Kieferorthopädie.
Registration as an orthodontic specialist; Since 2000: Senior faculty member at
the Department of Orthodontics, Universitätsklinikum Münster, University of
Münster. The clinical focus is on the treatment of patients who underwent
orthognathic and craniofacial surgery. 2005: German “Habilitation”. Since 1996
multiple publications in national and international journals. Since 2005 Editorin-Chief
of the international journal Head & Face Medicine.
19

Transplantation of Close s Apices: One of the Secrets of the
Periodontal Membrane
Since Ambroise Paré (1561) described his technique for replacing carious elements in one
individual by an extracted tooth from another individual, transplantation of teeth has always been
in the European dental interest. The unique osteogenic capacity of the periodontal membrane
and a good selection of the autograft makes it possible to replace a lost element and the
surrounding atrophic processus. Since the literature has shown survival rates between 90 to
almost 100% for autotransplants (with an open apex) up to 5 years, we started to transplant teeth
with a completed root-formation. Because revascularisation will not occur after transplantation of
an element with a closed apex, an endodontic treatment of the autograft is necessary. The
endodontic treatment can be performed before or after transplantation. The literature has shown
a succes rate of 98% for vital extirpations. Therefore we have chosen to do the endodontic
treatment before the transplantation. These transplanted teeth show the same healing and
development as elements with an open apex.
Dr. Manfred Leunisse
Publicaties:
1988 M. Leunisse, L. Abraham-Inpijn, J.L.N. Roodenburg; Lasers en
harde tandweefsels. N.T.v.T vol 95, nr 10, 369-371.
1989 M. Leunisse, L. Abraham-Inpijn; Het gebruik van Lasers in de
tandheelkunde 1 en 2. NVM Tijdschrift vol 13 no 5 en 6.
1992 F. Ras, M. Leunisse, L.L.M.H. Habets, B. Prahl-Andersen; Facial
asymmetrie studied by means of stereophotogrammetry. J. Dent
Res:
72: 691.
1992 M. Leunisse, F. Ras, L.L.M.H. Habets, B. Prahl-Andersen;
Stereophotogrammetric analysis of facial asymmetrie in CPL
childeren. Eur. J. Orthod. 14: 315.
2002 K.H. Phoa, M. Leunisse, C de Baat; Oligodontie, Het tandheelkundig jaar 2002, 32-
48.
2004 K.H. Phoa, M. Leunisse, C. De Baat; Teamconcept bij oligodontie; Het
tandheelkundig jaar 2004, 27-46.
2005 G.A. van der Weijden, M.F. Timmerman, D.S. Barendregt, S.P.W.H. Keizer, M.
Leunisse, G.N. Wolffe; Kroonverlening: de oplossing voor specifieke parodontale,
restauratieve en esthetische problemen. Quality Practice, vol 1, no 3, 41-51.
2007 D.S. Barendregt, M. Leunisse; Interdisciplinaire tandheelkunde: de orthoparoconnectie.
Quatity Practice, vol 2, no 6, 28-37.
2010 M. Leunisse, D.S. Barendregt; Autotransplantatie van premolaren: een geheim van
het parodontaal ligament. Quality Practice, vol 6, no 1, 20-32.
2011 M. Leunisse , D.S. Barendregt; Incisor replacement: a perio/orthodontic perspective.
chapter 2, procedings of the 12 th International Orthodontic Study week 2010. in
press.
Editor of:
- Orthodontics at the Turn of the Century, Proceedings of the 10 th
International Orthodontic Study week 2000, ISBN 90 8006 473 4.
- New trends in knoledge and skills, Proceedings of the 11 th International
Orthodontic Study week 2007, ISBN 978 90 8006 647 4 4.
- Orthodontics beyond the Smile, Proceedings of the 12 th International
Orthodontic Study week 2010, in press.
20

Treatment with the Incognito System
Lingual Orthodontics is getting more and more popular in orthodontics all over the world. This
leads to an increased demand in our practices for an invisible treatment. The orthodontist needs
to work with a lingual appliance that can solve every single orthodontic problem as a conventional
labial appliance does. There is no room for an undertreatment. That makes it necessary to work
with a 3D lingual appliance. An appliance that is exact enough , that can control the 3rd order –
Torque and is comfortable for the patient. There are plenty of orthodontic cases that only can
succesfully be treatet if torque can be controlled and established.
In order to make treatment for both the patient and doctor more easy and sufficient combining
treatment methods will lead to favourable results. Combining Incognito appliance and Herbst
appliance leads to treatment opportunities that i never had before while working with a lingual
appliance. Patients can be treated less invasive because extractions and surgery can be avoided
in many cases. An individual set up is produced for every patient including the treatment goals.
Based on the set up Incognito Brackets and individual arch wires are produced. The aim of my
lecture is to discuss these aspects.
I am very glad that there are more and more colleagues attanding lingual courses and society
meetings such as the European ESLO and the German DGLO. Since 2006 a Master of Science
class in lingual orthodontics is established at the Medical University Hannover / Germany to meet
the academic demand.
Dr. Esfandiar Modjahedpour
Orthodontist + Master of Science in Lingual Orthodontics
born 21.09.1969 Düsseldorf / Germany
1989-1994 Studies of Dentistry Semmelweis University Budapest
1991 Intern at Lenox Hill Hospital New York / USA
1994 Doctoral Dissertation
since 1997 Specialist of Orthodontics and dentofacial orthopedics
since 2001 Privat Orthodontic Practice in Krefeld / Germany
since 2008 Master of Science in Lingual Orthodontics – Medical University Hanover, Germany
since 2008 Accredited and active Member of European Society in Lingual Orthodontics ( ESLO )
since 2008 Accredited and active Member of German Society in Lingual Orthotontics ( DGLO )
2010 President of the German Society in Lingual Orthodontics ( DGLO ) Congress in Düsseldorf /
Germany
21

Obstructive sleep apnea syndrome in children
The obstructive sleep apnea syndrome (OSAS) is characterized by repetitive upper airway
obstructions during sleep. Symptoms of OSAS in children include snoring, restless sleep,
enuresis during the night, and excessive sleepiness during the day. OSAS can lead to various
adverse consequences during childhood, such as behavior and learning problems, growth
inhibition and increased cardiovascular risks. Prevalence reports of childhood OSAS range from
0.7% to 10.3%. The gold standard for diagnosis of OSAS in children is polysomnography. Other
diagnostic techniques include questionnaires, audiotaping and videotaping, and pulse oximetry.
The most common treatment is adenotonsillectomy. Continuous Positive Airway Pressure (CPAP)
is an option for those who are not candidates for surgery or who do not respond to surgery. A
variety of other treatment modalities is also available for children with OSAS, such as weight loss,
craniofacial surgery, orthodontic appliances and tracheotomy. Currently Dutch national
multidisciplinary guidelines for the diagnosis and treatment of OSAS in children are being
developed. This presentation will provide an update on current thoughts regarding the
effectiveness and indication of orthodontic appliances in the treatment of OSAS in children.
Dr. Hayé Remmelink
Dr. Hayé Remmelink (1955) studied dentistry between 1974
and 1980 at the University of Groningen and received his
postgraduate orthodontic training from 1980 to 1984. In 1985
he obtained a PhD from the University of Groningen. His
thesis ‘The postnatal development of the human maxillary
sutural surfaces’ has been recognized by the American
Association of Orthodontists Milo Hellman Research Award
in 1986. Since 1985 he maintains a private practice in
orthodontics in Almelo, The Netherlands. His major areas of
interest are cleft lip and palate and obstructive sleep apnea
syndrome (OSAS). In 1987 he started pioneering work on
the treatment of OSAS with mandibular repositioning appliances (MRA’s) and wrote the first
Dutch publication on this topic. Among others he has been secretary of the Dutch Association for
Cleft Palate and Craniofacial Anomalies, president of the Dutch Association of Orthodontists, cofounder
and past secretary of the Dutch Society of Dental Sleep Medicine, and member of the
Working Group on Dutch national guidelines for the diagnosis and treatment of obstructive sleep
apnea in adults. Currently he is member of the Working Group on Dutch national guidelines for
the diagnosis and treatment of obstructive sleep apnea in children. Dr. Remmelink has published
numerous articles and given many lectures. In 2011 he was made honorary member of the Dutch
Society of Dental Sleep Medicine.
22

Molar Distalization with the Skeletal Pendulum K (Frog):
Biomechanics, Appliances, Case Studies
Modern orthodontists have various fixed appliance systems at their disposal for non-compliant
molar Distalization. The pendulum appliances belong to the group of frictionless, intramaxillary
Distalization systems of intraoral anchorage design. As shown by clinical and experimental
studies, continuous and virtually translatory Distalization of the maxillary molars is possible
because of the specific biomechanics of the Pendulum K appliance, a special modification of the
standard pendulum appliance (initial toe-in bend and up righting activation at the end of the
pendulum spring, Distalization activation of 1.8 N to 2.2 N, reactivation of the system by regular
adjustment of a built-in distal screw). Depending on the form of anchorage, there are two variants
of the Pendulum K appliance: that skeletally anchored to miniscrews or palatal implants, and the
variant anchored to periodontal/soft tissue support.
Dr. Björn Ludwig
Dr. Bjorn Ludwig has his own private orthodontic practice in Traben-
Trarbach, Germany. He is scientific coordinator and Assistant Professor of
the University of Homburg/Saar, Department of Orthodontics. He teaches in
the program of further education for orthodontics in the Association of
Dentists and the University of Frankfurt/Main (Erasmus). His focus of
research work is cortical anchorage with mini-screws and their further clinical
development. He has published more than 60 scientific papers about
miniscrews, cleft palate and interdisciplinary cases. Dr Ludwig gives lectures
and handson courses about mini-screws and lingual treatment worldwide. He
is editor of the book “Mini-implants in orthodontics”, Quintessenz, Berlin,
London and the book “Selfligating brackets” Thieme, Stuttgart. As well as
doing reviews for some major journals, he is co-editor of the journal of clinical orthontics.
Dr. Björn Ludwig
• Studium der Zahnmedizin in Heidelberg
• Weiterbildung zum Fachzahnarzt für
Kieferorthopädie in freier Praxis und
im Anschluss an der Universitätsklinik
Frankfurt am Main
• niedergelassen in eigener Praxis mit
Dr. Bettina Glasl in Traben-Trarbach
• Kongressvorträge und Posterbeiträge
• zahlreiche Veröffentlichungen
• nationale und internationale Fortbildungsveranstaltungen
• Forschung und Entwicklung im Bereich
Miniimplantate
• Herausgeber des Fachbuches „Miniimplantate
in der Kieferorthopädie“
(erschienen im Quintessenz
Verlag, Berlin)
• zwei Buchkapitel-Beiträge
23

Clear Aligner
Die zuverlässige und zielorientierte Schienenbehandlung aus Ihrem Praxislabor.
- Eine Einführung -
Das Clear-Aligner-Verfahren nach Dr. Tae-Weon Kim setzt den Kieferorthopäden in die Lage
ästhetische Schienenbehandlungen mit dem eigenen Praxislabor durchzuführen. Mit diesem
Verfahren bleiben alle Schritte der Zahnregulierung zuverlässig in der Hand des
Kieferorthopäden. Die Patienten danken es, eine ästhetische Behandlungsalternative gewonnen
zu haben.
Dr. Bruno Wilhelmy
1980 Zahnmedizinisches Staatsexamen.
Danach wissenschaftlicher Mitarbeiter der Universitätsklinik Düsseldorf,
Prof. Dr. H. Böttger.
Mitarbeiter der zahnchirurgischen Abteilung der Niederrheinischen
Kieferklinik.
1981 Promotion zum Doktor der Zahnmedizin.
1983 Beginn der kieferorthopädischen Fachzahnarztausbildung bei Prof. Dr. Rolf Hinz und Dr.
Elisabeth Hinz, Herne.
Universitätsklinik Witten/Herdecke, Bereich Kieferorthopädie, Fachzahnarztausbildung und
anschließende Oberarztfunktion
1986 Ernennung zum Fachzahnarzt für Kieferorthopädie.
1987 Praxisgründung
2000 Intensiv-Ausbildung zum Theaterpädagogen an der Jugendkunstschule Unna unter
Volkhard Paris und Monika Bunse.
(sehr hilfreich bei Patientenmotivation, Re-Motivation und bei der Patientenbegeisterung!)
Lingualtechnik seit sechs Jahren
Clear-Aligner seit zwei Jahren
Ständige, umfassende Weiterbildung in allen wichtigen Berufbereichen.
Tätigkeitsschwerpunkt Lingualtechnik
Ärztliche Hospitanz bei führenden Berufskollegen insbesondere u. a. Dr. André Hugo (The South
African Academy of Lingual Orthodontics, SAALO) und Dr. Ziegfried Weber, Johannesburg,
Südafrika, Dr. TaeWeon Kim, Seoul, Korea.
24

Saturday, 4 June 2011
Ankylosis of Teeth
Ankylosis of permanent teeth is a rare disorder characterized by fusion of the tooth to the bone
(‚bony bridge’), preventing both eruption and orthodontic treatment. Infraocclusion is known to be
an reliable sign of ankylosis. The severity of malocclusion related to ankylosis depends on the
developmental stage when ankylosis occurs and the amount of remaining growth. In the growing
child ankylosed teeth provide fixed points from which to study the migration of the teeth of the
affected and unaffected side during this period. 12 subjects with both anterior and posterior
unerupted permanent teeth are presented to focus attention on dental respectively on skeletal
changes in the sagittal, horizontal and vertical plane of space. Indications for operative
intervention and orthodontic management are discussed.
Johannes Berten
Klinik für Kieferorthopädie
Medizinische Hochschule Hannover
Carl-Neuberg-Str. 1
30625 Hannover
Berten.Johannes@mh-hannover.de
Dental Sciences: LMU Munich and FU Berlin.
General dental practice: Berlin, 1975-1977.
Orthodontic training: Private orthodontic clinic, Berlin, 1977-1980,
Department of Orthodontics, Medical University Hannover,
1980-1981.
Present employment: Department of Orthodontics, Medical University Hannover,
Senior Orthodontist since 1982.
Focus: Treatment with removable and fixed appliances in
the transitional dentition,
treatment of cleft lip and palate patients.
25

SNB–Swiss Nonligating Bracket–an Astonishing New Bracket to
Use Lingually and Labially: Experiences and Prospective
The control of tooth movement in all three dimensions is a major problem in the lingual and labial
therapy. Here, the question arose whether there is a solution with the conventional bracket
systems, or would another bracket with an entirely new conception be of the right way? This
presentation will show how to reduce much of the dreaded side effects. The SNB bracket controls
with two arches in two slots that are mounted in a vertical distance of about 2 mm, in an efficient
manner, the movements of the teeth. The arch wires slide in the slot like a skater on the ice and,
in addition, guarantee a good stability. A special feature of these brackets, the two vertically
arranged slots are to be emphasized. Thus an excellent control both in the transversal and in the
vertical dimensions can be achieved which is especially important in extraction cases. These
brackets are selfligating and show extremely low friction because of their Teflon-like material. The
treatment times are reduced substantially in the rule. With the SNB bracket A new dimension
comes into the orthodontic treatments. Despite its small dimensions it includes benefits, such as
a good three-dimensional movement control, which is particularly important in extraction cases.
Dr. Jakob Karp
1977 Graduation in general dentistry at the University of Munich,
Germany
1980 Specialization in orthodontics at the University School of
Orthodontics Geneva, Switzerland
1981 -1987 Private practice Munich, Germany
1988 – 2001 Private practice in Rom, Italy
Since 2002 Private practice Munich, Germany
The author is a regular speaker at major conferences, teaches in orthodontic training courses
lingual orthodontics, and publishes in specialized newspapers and journals.
26

Post-Congress-Course: 2D Lingual Orthodontic “Hands ON”
Course
Case reports of patients treated with 2D lingual brackets will introduce you into this efficient
technique. By looking at those case reports, you will gain knowledge about indication and
treatment planning. You will get to know the instruments and the material you may use. You will
learn to choose the different 2D bracket – types and with which wires you get fast treatments.
You will learn how to manage problems that may occur during treatment. Finally, you will be able
to select the patients which are suitable for 2D Lingual Orthodontics. There will also be the
opportunity for practical work: Direct bonding, wire bending. After this course, you will be able to
apply the 2D Lingual Orthodontic Treatment in your own practice.
Dr. Theophil Gloor
Dr. Theophil Gloor finished his studies at the University of Berne in 1969.
After his postgraduate education (Prof. Herren), he got the title “Specialist
of Orthodontics” in 1976. At this time, he opened his practice in Basle,
where he is still working. For many years, he was member of the
committee of the Swiss Orthodontic Society. During the past 10 years, he
focused on treatments of adults, mainly treatments with 2D lingual brackets.
Therefore, he is predestined to share the experience he got.
27