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Chairside®<br />

A Publication of <strong>Glidewell</strong> Laboratories • Volume 7, Issue 1<br />

Photo Essay<br />

An Esthetic Challenge for<br />

BruxZir ® Solid Zirconia<br />

Page 23<br />

Navigating the New Era of<br />

“Wants-Based” Dentistry<br />

Dr. Robert Lowe<br />

Page 14<br />

Dr. Ellis Neiburger<br />

The Routine Adult Pulpotomy:<br />

Has Its Time Come Again?<br />

Page 42<br />

One-on-One Interview<br />

Officite’s Glenn Lombardi on<br />

Optimizing Your Online Presence<br />

Page 32<br />

Dr. Michael DiTolla’s<br />

Clinical Tips<br />

Page 9<br />

COVER PHOTO<br />

Linh Dinh, Human Resources Assistant<br />

<strong>Glidewell</strong> Laboratories, Newport Beach, Calif.


Contents<br />

9 Dr. DiTolla’s Clinical Tips<br />

In this issue, I showcase Ultradent’s Opalescence ®<br />

Trèswhite Supreme preloaded teeth-whitening trays,<br />

which provide an easy way to deliver same-day bleaching<br />

trays. Also featured are: NTI ® Superflex Diamond<br />

Discs from Axis <strong>Dental</strong>, my top instrument pick for trimming<br />

and shaping provisionals; the KaVo QUATTROcare<br />

Automatic Handpiece Maintenance System, which I trust<br />

to keep my favorite handpieces in tip-top shape; and<br />

NoMIX ® Temporary Cement from Centrix, a necessity for<br />

short-term cementation.<br />

14 Upgrading Porcelain Veneer Restorations:<br />

A Case Report<br />

Have you had patients come to your office requesting<br />

an upgrade of perfectly serviceable restorations based<br />

solely on esthetics? Dr. Robert Lowe presents one such<br />

case in his article that outlines the process of upgrading<br />

veneers to satisfy a patient’s esthetic demands. He<br />

discusses a new age of “wants-based” dentistry, which<br />

is often purely esthetic in nature, and how to navigate<br />

customers’ wants and perceived needs in this era of<br />

elective dentistry.<br />

23 Photo Essay: BruxZir ® Solid Zirconia<br />

Anterior Esthetic Challenge<br />

This photo essay illustrates our laboratory’s latest<br />

advancements in improving the translucency and esthetic<br />

properties of BruxZir Solid Zirconia. To showcase this<br />

product, we put it to the challenge of replacing old<br />

crowns on tooth #8 and #9. After viewing the case, I<br />

think you will see why we decided to give the BruxZir<br />

Solid Zirconia motto an upgrade as well.<br />

32 One-on-One with Dr. Michael DiTolla:<br />

Interview of Glenn Lombardi<br />

In a day and age when a business’s success and growth<br />

often hinges on online reviews and other social media<br />

standards, some dental practitioners would like to believe<br />

they are safe from this type of information technology, yet<br />

they simply are not. Now, more than ever, it is important<br />

to ensure your practice is up-to-date on its social media<br />

practices. Glenn Lombardi, president of Officite LLC, a<br />

leading national provider of premier websites and turnkey<br />

Internet marketing solutions for the dental community,<br />

talks about what dentists can do to optimize their online<br />

presence.<br />

Contents 1


Contents<br />

42 Is It Time to Do Routine Adult Pulpotomies?<br />

Due to the current dampened state of the economy, a<br />

growing number of patients are unable to afford traditional<br />

endodontic treatment, yet the need for root canal therapy<br />

continues to rise. Dr. Ellis Neiburger discusses the oftenoverlooked<br />

pulpotomy as an alternative to traditional endo,<br />

its long history and how it fits into today’s dental practice<br />

in this must-read article.<br />

52 In Praise of Electric Handpieces<br />

As Dr. Elliot Mechanic explains, dentists have come a long<br />

way from being regarded as “drillers, fillers and billers,” to<br />

now increasingly being seen as artists and healers. With the<br />

advent of “smart” technologies such as the electric handpiece,<br />

dentists can treat their once-fearful patients with a<br />

greater level of ease and increased efficiency. Dr. Mechanic<br />

outlines the use and benefits of electric handpieces, including<br />

the important role they play in crown preparation.<br />

56 The Remake Debate<br />

How do you handle remake cases? Maribeth Marsico, senior<br />

editor at LMT Communications, explores the remake process,<br />

the biggest remake culprit and what can be done to<br />

cut down on these “cases-gone-wrong.” There will always<br />

be remakes in dentistry, but as this report shows, it is the<br />

duty of the lab, the technicians and the dentists to work together<br />

to ensure the patient gets their final desired result.<br />

<strong>Glidewell</strong> Publications for iPad<br />

iPAD APP Chairside is now available on<br />

your iPad. Search “<strong>Glidewell</strong>” in the iTunes<br />

Store and download the free app.<br />

60 Digital Impressions for an<br />

Immediate Denture<br />

Versatility, accuracy and ease of use are just some of the<br />

benefits digital impression technology offers over conventional<br />

impression techniques. This case study from<br />

Dr. Dean Saiki illustrates how digital impressions are not<br />

only equal to conventional impressions, but are in some<br />

instances the only appropriate option.<br />

ALSO IN THIS ISSUE<br />

8 By the Numbers<br />

64 The Chairside Photo Hunt<br />

2<br />

www.chairsidemagazine.com


Publisher<br />

Jim <strong>Glidewell</strong>, CDT<br />

Editor-in-Chief and Clinical Editor<br />

Michael C. DiTolla, DDS, FAGD<br />

Managing Editors<br />

Jim Shuck; Mike Cash, CDT<br />

Creative Director<br />

Rachel Pacillas<br />

Copy Editors<br />

Jennifer Holstein,<br />

Megan Affleck, David Frickman<br />

Statistical Editor<br />

Darryl Withrow<br />

Digital Marketing Manager<br />

Kevin Keithley<br />

Graphic Designers/Web Designers<br />

Jamie Austin, Deb Evans, Joel Guerra, Audrey Kame,<br />

Lindsey Lauria, Phil Nguyen, Kelley Pelton,<br />

Melanie Solis, Ty Tran, Makara You<br />

Photographer<br />

Sharon Dowd<br />

Clinical Videographer<br />

James Kwasniewski<br />

Illustrator<br />

Wolfgang Friebauer, MDT<br />

Coordinator and Ad Representative<br />

Teri Arthur<br />

(teri.arthur@glidewelldental.com)<br />

If you have questions, comments or complaints regarding<br />

this issue, we want to hear from you. Please e-mail us at<br />

chairside@glidewelldental.com. Your comments may be featured<br />

in an upcoming issue or on our website:<br />

www.chairsidemagazine.com.<br />

© 2012 <strong>Glidewell</strong> Laboratories<br />

Neither Chairside magazine nor any employees involved in its publication<br />

(“publisher”), makes any warranty, express or implied, or assumes<br />

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Chairside is a registered trademark of <strong>Glidewell</strong> Laboratories.<br />

Chairside ® Magazine is a registered trademark of <strong>Glidewell</strong> Laboratories.<br />

Editor’s Letter<br />

Ahh, the Internet. Like many of you, I grew up in an era<br />

where most arguments were never really settled. Unless<br />

one of the arguing parties actually owned an Encyclopedia<br />

Britannica and the argument was about which bird can<br />

hover (answer: the hummingbird), most $20 bets entered a<br />

permanent state of limbo. In 2012, this is no longer true. I<br />

was recently marveling at how nearly any fact can be pulled<br />

up on the Web in less than 10 seconds. (Wikipedia should<br />

be getting a cut of all the bets it’s helping to settle!)<br />

While the power of the Internet to transform our everyday<br />

lives is undeniable and largely positive, as dentists we<br />

are faced with something dentists in the “golden age of<br />

dentistry” never had to deal with. Do you remember the<br />

“golden age”? Dentistry was great back then! The golden<br />

age is loosely defined as the time period 10 years before<br />

you graduated from dental school — for me that’s 1978.<br />

Back then, all patients were independently wealthy, and<br />

they lusted after full-mouth rehabilitations. When they were<br />

happy, they said “thank you.” When they were unhappy,<br />

they told six to eight people.<br />

Today’s patients — happy or unhappy — are increasingly<br />

Internet savvy, and with the increase in social media platforms<br />

and participants, managing these communication<br />

channels becomes necessary. We can’t please every patient,<br />

and we are going to disappoint some. Unless we learn how<br />

to manage social media, we just have to hope that the ones<br />

we disappoint are blood relatives or in-laws.<br />

It’s inevitable that you will eventually have a bad review or<br />

two on Yelp or another social media site that doesn’t even<br />

exist today. Read my recent interview with Glenn Lombardi<br />

to find out how you can use this new form of communication<br />

to your advantage. I know the dentists back in the<br />

“golden age” didn’t have to deal with this, and you never<br />

signed up for this, but it’s here. Appoint a staff member to<br />

lead your team’s social media efforts and follow Glenn’s<br />

well-reasoned advice!<br />

Yours in quality dentistry,<br />

Dr. Michael C. DiTolla<br />

Editor-in-Chief, Clinical Editor<br />

mditolla@glidewelldental.com<br />

Editor’s Letter 3


Letters to the Editor<br />

Dear Dr. DiTolla,<br />

First of all, I want to thank you for helping<br />

me with anterior crown preps! I, too, find<br />

that as soon as I begin preparing, I lose<br />

my frame of reference. I have tried various<br />

depth measurement methods, but your<br />

Reverse Preparation Technique is priceless.<br />

Also, your in-depth video demonstration of<br />

its use is outstanding. Thank you so much<br />

for transforming my technique and for my<br />

newly gained confidence in accurately doing<br />

anterior crown preps in a timely manner.<br />

I have a question for you: From the brief<br />

view I got of your dental unit on your video,<br />

it looks like you have an A-dec unit (Continental<br />

style). Also, the electric handpiece,<br />

if I viewed it correctly, is an A-dec/W&H<br />

electric motor. However, I noticed that you<br />

use the KaVo ELECTROtorque high-speed<br />

attachment. I did not know that KaVo electric<br />

handpieces were capable of connecting<br />

to A-dec/W&H electric motors. Do you<br />

need a special coupling/adaptor, or are you<br />

able to simply snap it on the same way you<br />

would if you used an A-dec/W&H electric<br />

handpiece? Also, I have the same A-dec<br />

unit plus A-dec/W&H electric motor, but<br />

I use the A-dec/W&H electric handpieces. I<br />

find them to be very good, but I must admit<br />

I have never tried the KaVo ELECTROtorque<br />

electric handpiece. Have you used or tried<br />

the A-dec/W&H electric handpiece? If so,<br />

4<br />

www.chairsidemagazine.com<br />

how does it differ from the KaVo electric<br />

handpiece that you use?<br />

Thank you very much for your time. Again, I<br />

enjoy watching and reviewing your instructional<br />

videos!<br />

– Larry Kolar, DDS<br />

Chicago, Ill.<br />

Dear Larry,<br />

Thanks for the kind words!<br />

The KaVo electric handpieces do snap<br />

directly onto the A-dec motor; no<br />

adapter is needed. I have never used<br />

anything but KaVo handpieces, even<br />

going back to my air turbine days, so<br />

I guess that means I’ve been pretty<br />

satisfied with KaVo.<br />

I know KaVo is doing a special promotion<br />

where, if you go to www.trykavo.<br />

com, they will send you an electric<br />

handpiece at no charge that you can<br />

snap on for a few days, prep some<br />

teeth and see which one you like better.<br />

Let me know what you think!<br />

Best,<br />

– Mike<br />

Dear Dr. DiTolla,<br />

I was wondering which is the strongest<br />

anterior bridge material besides monolithic<br />

zirconia? I have had failures with IPS<br />

Empress ® II and IPS e.max ® (Ivoclar<br />

Vivadent). Fractures usually occur when<br />

patients unknowingly bite into a hard bone<br />

(meat that is supposed to be boneless), or<br />

forget they need to be cautious with the<br />

restorations and chomp on something like<br />

a hard baguette. The bridges in these cases<br />

have had solid, broad connectors. Could<br />

you comment on IPS e.max versus zirconia<br />

with layered porcelains (e.g., 3M ESPE <br />

Lava )? Is it possible to make the lingual<br />

occlusion of an anterior maxillary bridge<br />

in zirconia and layer just the facial with<br />

porcelain, using the same concept of metal<br />

occlusion in a PFM? I am sitting on a case,<br />

so a quick response would be appreciated.<br />

Mahalo for your input.<br />

– Todd Okazaki, DDS<br />

Haleiwa, Hawaii<br />

Dear Todd,<br />

Good question! First of all, you are<br />

correct in thinking that monolithic<br />

zirconia, such as BruxZir ® Solid<br />

Zirconia (<strong>Glidewell</strong> Laboratories), is the<br />

strongest all-ceramic bridge material<br />

that we have. This time last year, I would<br />

have hesitated to recommend that a<br />

dentist prescribe BruxZir Solid Zirconia<br />

for an anterior bridge. The esthetic<br />

nature of BruxZir restorations has really<br />

improved over the last year, although<br />

it hasn’t quite caught up with its<br />

monolithic brethren, such as IPS e.max.<br />

An anterior PFM bridge is probably<br />

the strongest solution, although the<br />

ceramic material can certainly chip<br />

off the metal understructure, and the<br />

esthetics can be compromised by the<br />

lack of translucency and possibly<br />

exposed metal margins.<br />

I am not sure I would want to go with<br />

the zirconia-layered-with-ceramic option<br />

you mention, as we have noticed<br />

more chipping with that combination<br />

of materials than we have with porcelain<br />

fused to metal. In fact, porcelain<br />

fused to zirconia would probably be<br />

my last choice after BruxZir Solid Zirconia,<br />

IPS e.max and PFM.<br />

You also asked about making the lingual<br />

of the bridge in solid zirconia,<br />

similar to a metal lingual on a PFM<br />

restoration. While we do fabricate<br />

bridges like that on request from dentists,<br />

we don’t get many requests for it.<br />

Perhaps the reason is that the strength<br />

of BruxZir Solid Zirconia comes from<br />

its monolithic nature — the fact that<br />

it doesn’t have any ceramic material<br />

fused to it. As a result, it fractures and<br />

chips less than any other restoration<br />

in the lab (except cast gold, of course).<br />

When we do make a BruxZir restoration<br />

like that, we typically place the


ceramic material on the facial and<br />

carry it from the gingival down to the<br />

incisal edge, without wrapping the<br />

incisal edge. We want to allow the<br />

patient to function in protrusion on<br />

the zirconia, rather than the porcelain.<br />

But doing this takes it from being a<br />

monolithic BruxZir restoration to a<br />

bilayered restoration, which is more<br />

prone to chipping.<br />

While there are no absolutes, my first<br />

choice today is IPS e.max for a 3-unit<br />

bridge in the anterior on a patient<br />

who does not show a lot of wear. For<br />

that same bridge in a patient who<br />

does show signs of wear, my choice is<br />

BruxZir Solid Zirconia, especially if the<br />

patient has previously chipped a PFM<br />

restoration. As the size of the bridge<br />

increases beyond 3 units, I begin to<br />

consider PFM as my choice because<br />

of the superior strength of the metal<br />

connectors when compared to any allceramic<br />

system, especially when there<br />

is a lack of room for the connectors.<br />

As always, your mileage may vary.<br />

Hope that helps!<br />

– Mike<br />

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ADVERTISE/SUBMIT AN<br />

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Call 888-303-4221<br />

Letters should include writer’s full name,<br />

address and daytime phone number. All<br />

correspondence may be published and<br />

edited for clarity and length.<br />

Dear Dr. DiTolla,<br />

I haven’t talked with my wife for days. She can’t stop!<br />

– Tom Novak, DDS<br />

Weatherford, Texas<br />

Letters to the Editor 5


Contributors<br />

Michael C. DiTolla, DDS, FAGD<br />

Dr. Michael DiTolla is a graduate of University of the Pacific Arthur A. Dugoni School of Dentistry. As<br />

director of clinical education and research at <strong>Glidewell</strong> Laboratories in Newport Beach, Calif., he performs<br />

clinical testing on new products in conjunction with the company’s R&D department. <strong>Glidewell</strong> dental<br />

technicians have the privilege of rotating through Dr. DiTolla’s operatory and experiencing his commitment<br />

to excellence through his prepping and placement of their restorations. He is a CR evaluator and lectures<br />

nationwide on both restorative and cosmetic dentistry. Dr. DiTolla has several clinical programs available<br />

on DVD through <strong>Glidewell</strong> Laboratories. For more information on his articles or to receive a free copy of<br />

Dr. DiTolla’s clinical presentations, call 888-303-4221 or e-mail mditolla@glidewelldental.com.<br />

Glenn Lombardi<br />

Glenn Lombardi is president of Officite LLC, a leading national provider of premier websites and<br />

turnkey Internet marketing solutions for the dental community. Since 2002, Officite has built thousands<br />

of websites for healthcare practices around the world, which have generated hundreds of thousands of<br />

new patient appointment requests. Glenn is a frequent speaker at national and state dental association<br />

meetings, including the AGD and D.C. <strong>Dental</strong> Society annual meetings. His presentations focus on<br />

professional website development, search engine optimization, and how to seamlessly integrate the Internet<br />

into your practice to attract new patients and increase case acceptance. Contact him at 800-908-2483 or<br />

glombardi@officite.com.<br />

Robert A. Lowe, DDS, FAGD, FICD, FADI, FACD, FIADFE<br />

Dr. Robert Lowe graduated magna cum laude from Loyola University School of Dentistry in 1982 and was<br />

a clinical professor of restorative dentistry at the school until its closure in 1993. Since January 2000,<br />

Dr. Lowe has maintained a private practice in Charlotte, N.C. He lectures internationally and his work is<br />

frequently published in well-known dental journals on esthetic and restorative dentistry. Dr. Lowe received<br />

fellowships in the AGD, ICD, ADI, ACD and IADFE, received the 2004 Gordon Christensen Outstanding<br />

Lecturers Award and, in 2005, Diplomat status on the American Board of Aesthetic Dentistry. Contact him<br />

at 704-364-4711 or boblowedds@aol.com.<br />

6<br />

www.chairsidemagazine.com


Elliot Mechanic, DDS<br />

Dr. Elliot Mechanic has been practicing general and esthetic dentistry in Montreal, Quebec, since 1979.<br />

Dr. Mechanic serves as Oral Health’s editorial board member for esthetics, and is a member of numerous<br />

professional organizations, including the International Academy for <strong>Dental</strong>-Facial Esthetics, Academy of<br />

Laser Dentistry and the AACD. Dr. Mechanic takes great pride in his work, which has afforded him the<br />

pleasure to work with executives, professionals, celebrities, international stars and everyone in between. He<br />

can be reached at 514-769-3939.<br />

Ellis J. Neiburger, DDS<br />

Dr. Ellis “Skip” Neiburger graduated from the University of Illinois at Chicago College of Dentistry in 1968,<br />

where he did postgraduate work on pulp histology in the Department of Oral Pathology. Dr. Neiburger<br />

currently practices general dentistry in Waukegan, Ill. A former vice president of the American Association<br />

of Forensic Dentists, Dr. Neiburger has been the association’s journal editor since 1978. He also was<br />

publisher/editor for <strong>Dental</strong> Computer Newsletter (the journal that introduced computing to the dental field).<br />

Contact him at 847-244-0292 or eneiburger@comcast.net.<br />

Dean H. Saiki, DDS<br />

Dr. Dean Saiki graduated from USC School of Dentistry in 1988. He maintains a private practice in North<br />

County San Diego, Calif., specializing in cosmetic, laser, implant and digital dentistry. He has been a<br />

member of the ADA, CDA and San Diego County <strong>Dental</strong> Society since 1989, as well as other advanced study<br />

clubs including the Trojan <strong>Dental</strong> Study Club. Dr. Saiki is trained and certified in dental soft tissue lasers<br />

and CAD/CAM technology. He has been voted a “Top Dentist” in San Diego by his peers for the past five<br />

years. Contact him at 760-732-3456 or dentist@deansaiki.com.<br />

Contributors 7


Numbers<br />

by the<br />

143<br />

CEREC<br />

Number of<br />

dental labs now<br />

offering BruxZir ®<br />

Solid Zirconia<br />

restorations<br />

5,400<br />

is a registered trademark of Sirona <strong>Dental</strong> Systems Inc.<br />

Number of modelfree<br />

BruxZir ® Solid<br />

Zirconia bridges<br />

and single-unit<br />

crowns <strong>Glidewell</strong><br />

Laboratories<br />

fabricated for<br />

CEREC ® Connect<br />

dentists in 2011<br />

18,427<br />

BruxZir is a registered trademark of <strong>Glidewell</strong> Laboratories.<br />

Number of<br />

dentists who<br />

have prescribed<br />

a BruxZir ® Solid<br />

Zirconia restoration<br />

Percentage<br />

of veneers<br />

prescribed with a<br />

VITA 3D-Master ®<br />

shade in 2006<br />

16%<br />

Percentage<br />

of veneers<br />

prescribed with a<br />

VITA 3D-Master ®<br />

shade in 2011<br />

25%<br />

17.1%<br />

41.6%<br />

Percent rate of<br />

rampant decay in<br />

children whose<br />

primary language<br />

is English<br />

Percent rate of<br />

rampant decay in<br />

children whose<br />

primary language<br />

is not English<br />

Percentages based on 56,251 veneers fabricated at <strong>Glidewell</strong> Laboratories<br />

3D-Master is a registered trademark of VITA Zahnfabrik.<br />

Findings from the Spokane Regional Health District’s 2010 Smile Survey<br />

(www.srhd.org/news.asp).<br />

66%<br />

Percentage of dentists who have<br />

received a negative online review<br />

As reported by The Wealthy Dentist ®<br />

8<br />

www.chairsidemagazine.com<br />

The Wealthy Dentist is a registered trademark of Du Molin & Du Molin Inc.


Dr. DiTolla’s<br />

CLINICAL TIPS<br />

PRODUCT........ NoMIX ® Temporary Cement<br />

SOURCE........... Centrix (Shelton, Conn.)<br />

800-235-5862, www.centrixdental.com<br />

Until every dental office is doing one-appointment crowns, temporaries will continue to be part of our<br />

day-to-day life. I am always amazed by the patient (typically male) who doesn’t appear to have ever<br />

flossed in his life, but when we put on a temp and tell him not to floss, flossing becomes an obsession<br />

— and, of course, he knocks off his temp. This is why all patients with possible non-retentive preps are<br />

sent home with a uni-dose of NoMIX Temporary Cement to use for short-term cementation, in case their<br />

temp comes off. As its name implies, there is no mixing, and the cement is moisture activated. After<br />

exposing the cement to water, have the patient hold their teeth together for five minutes while it sets,<br />

and you just saved yourself a Saturday trip to the office to re-cement a temp!<br />

Dr. DiTolla’s Clinical Tips 9


Dr. DiTolla’s<br />

CLINICAL TIPS<br />

PRODUCT........ NTI ® Superflex Diamond Discs<br />

SOURCE........... Axis <strong>Dental</strong> (Coppell, Texas)<br />

800-355-5063, www.axisdental.com<br />

If you told me I could only use one instrument to trim and shape provisionals, I would have to go with<br />

one of Axis <strong>Dental</strong>’s flexible, perforated NTI Superflex Diamond Discs in an electric handpiece. At higher<br />

speeds, I can use the double-sided disc to trim the margins on posterior temps, and then shape the<br />

mesial and distal contacts more smoothly than I could with a bur. But the disc really shines with anterior<br />

provisionals, where I can turn down the speed and really dial in the gingival embrasures, so I avoid<br />

blunting any papillae. There also is no better way to develop facial embrasures than with the flexible<br />

disc, which helps provisional bridges look a little more lifelike.<br />

10 www.chairsidemagazine.com


Dr. DiTolla’s<br />

CLINICAL TIPS<br />

PRODUCT........ Opalescence ® Trèswhite Supreme<br />

SOURCE........... Ultradent Products Inc. (South Jordan, Utah)<br />

888-230-1420, www.ultradent.com<br />

Years ago, we started offering complimentary bleaching trays to patients who had undergone some<br />

kind of esthetic procedure, typically the replacement of some older crowns on the maxillary anterior<br />

teeth. We wanted to be able to deliver the trays the same day, but we often faced backups in our<br />

tray production. A friend of mine introduced me to Opalescence Trèswhite Supreme last year, and<br />

the product has become an easy way for me to deliver same-day bleaching trays. My friend offers<br />

free teeth whitening to new patients, and he says using this product is the only way he can pull that<br />

off. These disposable, preloaded teeth-whitening trays definitely are the easiest way for patients to<br />

bleach their teeth, and they offer a great alternative to store-bought whitening systems.<br />

Dr. DiTolla’s Clinical Tips11


Dr. DiTolla’s<br />

CLINICAL TIPS<br />

PRODUCT........ QUATTROcare Automatic Handpiece Maintenance System<br />

SOURCE........... KaVo <strong>Dental</strong> (Charlotte, N.C.)<br />

888-275-5286, www.kavousa.com<br />

I’ve made no secret of my love for my KaVo ELECTROtorque handpieces. The torque is so high I can turn the speed<br />

down to a measly 3000 rpm and still have enough power to cut tooth structure, and because the speed is so low, I can<br />

do it without water! I also need that immense torque to properly polish intraoral restorations when I have to make an<br />

adjustment after cementation. To maintain my investment in these handpieces and keep them running smoothly, my<br />

assistant loves her KaVo QUATTROcare. It automatically cleans, lubricates and purges the handpieces with the push of<br />

a button, and then they go straight into sterilization. In case your Italian is weak, the “quattro” in QUATTROcare refers to<br />

the fact that it will service up to four handpieces at a time.<br />

12 www.chairsidemagazine.com


Upgrading Porcelain Veneer<br />

Restorations:<br />

A Case Report<br />

– ARTICLE and CLINICAL PHOTOS by Robert A. Lowe, DDS, FAGD,<br />

FICD, FADI, FACD, FIADFE<br />

Placement of indirect labial veneers (porcelain or composite) continues to be an excellent option to correct many esthetic<br />

complaints that our patients have with their smiles. Some of the more common indications for their clinical use include:<br />

1. Minor corrections of anterior tooth morphology and emergence angles to fill in spaces in the gingival embrasure<br />

areas when these spaces are an esthetic concern for the patient.<br />

2. Minor corrections in tooth position (rotation, labio-lingual arch position and crowding) if orthodontics is either not<br />

indicated or not accepted as a treatment option by the patient.<br />

3. Diastema closures and corrections of anterior tooth proportion (golden proportion).<br />

4. Establishment of anterior guidance and canine disclusion in patients where preparation for full-coverage restorations<br />

would necessitate unnecessary removal of healthy tooth structure.<br />

5. Improving tooth color for a patient where tooth whitening was not a treatment option or did not yield a satisfactory<br />

result for the patient.<br />

14 www.chairsidemagazine.com


Tooth Preparation<br />

The amount of tooth reduction required depends<br />

on the specific clinical situation. In general, 0.5 to<br />

0.7 mm of tooth reduction is needed. In some cases,<br />

where “nature” has done the tooth preparation or<br />

natural tooth contours are less prominent, “no prep”<br />

options are also possible. If changes in tooth position<br />

are required, some areas of the tooth may be<br />

prepared more, others less.<br />

It is recommended to first contour the teeth to their<br />

ideal position using a cylindrical diamond, then use<br />

depth cutters to remove a uniform amount of tooth<br />

structure to compensate for the thickness of the restoration.<br />

In extreme situations in which the dental<br />

pulp is encroached upon, root canal therapy is recommended<br />

rather than overcontouring the restoration.<br />

In cases where a low value (dark) preoperative<br />

tooth color is to be changed to a high value (light)<br />

color, more tooth structure may need to be removed<br />

(1.0 to 1.5 mm) to create enough space for opacious<br />

dentin or opaquers to block out the darkness. For<br />

some patients, preoperative tooth whitening may<br />

be indicated to increase the value of the underlying<br />

tooth structure, allowing for less tooth structure to<br />

be removed during the preparation process.<br />

Gingival margins should be placed at the gingival<br />

crest or slightly above. The interproximal margins<br />

should be carried into the lingual portion<br />

of the contact area. If diastemata are present, the<br />

interproximal margin of the preparation should be<br />

carried lingually to the linguoproximal line angle.<br />

Also, when closing spaces, it is important to prepare<br />

the gingival margins far enough into the proximal<br />

areas so that the restoration margins are not visible<br />

from a three-quarter or oblique view (when the<br />

patient turns their head to the side).<br />

After the preparations are finished, it is recommended<br />

to use a fine cylinder finishing diamond to make<br />

the preparations as smooth as possible. Aluminum<br />

oxide strips can be used to smooth and polish<br />

interproximal surfaces without compromising the<br />

proximal contact.<br />

Impressions<br />

As the gingival margin of most veneers will be<br />

slightly above the gingival crest, a very thin retraction<br />

cord, such as a #00 or #000, can be placed<br />

in the sulcus and left in place during the impression<br />

process. If a particular case requires subgingival<br />

margins, a #1 retraction cord is placed over<br />

the #00 or #000. When taking the impression, pull<br />

the #1 cord and leave the #00 or #000 in place.<br />

This “double-cord” technique will produce flawless<br />

intracrevicular impressions time after time.<br />

There is also a technique that can be used that will<br />

allow for an “anesthesia-free” and “retraction cordfree”<br />

procedure. First, a stock tray is selected to fit<br />

the patient’s maxillary arch form. Next, a heavybodied<br />

tray material is injected into the tray and<br />

placed in the patient’s mouth. This will convert the<br />

“stock tray” to a “custom tray” filled with set heavybodied<br />

impression material.<br />

The next step will be to wash with a light-bodied<br />

material, but a very important technique difference<br />

from a traditional “putty-wash” technique is used.<br />

When most clinicians perform a wash of a heavybodied<br />

impression, the papillae between the tooth<br />

indentations are removed and the space is completely<br />

filled with light-bodied wash material and<br />

reseated in the patient’s mouth. It is very difficult<br />

to displace the large amount of light-bodied material<br />

when seating the tray, and a less-than-desirable<br />

end result ensues from an incomplete seating of<br />

the tray. The difference here is the amount of lightbodied<br />

material that is used. It is very important to<br />

inject only a small amount of light-bodied material<br />

around the periphery of the tooth indentations in<br />

the heavy-bodied material. The heavy-bodied material<br />

will then force the light-bodied material into<br />

the intracrevicular spaces around the teeth. The<br />

smaller amount of light-bodied material allows the<br />

operator to more accurately seat the impression<br />

and gain sufficient “retraction” to force the lightbodied<br />

material into the crevices.<br />

Pull the #1 cord and leave the #00 or #000 in place. This “doublecord”<br />

technique will produce flawless intracrevicular impressions.<br />

Upgrading Porcelain Veneer Restorations15


Provisionalization<br />

A fast and simple technique to fabricate provisional<br />

veneers utilizes a preoperative wax-up as a<br />

template. Create a plastic provisional stent of the<br />

corrected tooth positions using a vacuum former and<br />

.040 plastic materials. After tooth preparation and<br />

final impressions, fill the stent with a bisacrylic provisional<br />

material and place over the teeth for two<br />

minutes. The patient can close in centric occlusion<br />

over the stent material during this time. After initial<br />

setting of the bisacrylic material, it can be removed<br />

from the stent and contoured with abrasive discs and<br />

fine laboratory acrylic carbide burs.<br />

Any repair or addition to the provisional restoration<br />

is accomplished using flowable composite material<br />

and light curing, either at the lab bench or intraorally<br />

while the provisional restoration is in place on<br />

the preparations. It is not necessary to use bonding<br />

agents prior to the addition of the flowable resin if<br />

the surface is first roughened to create micromechanical<br />

retention. Also, the secret to successful addition<br />

of flowable resin to bisacrylic provisional restorations<br />

is to create a long bevel on the bisacrylic<br />

material, add the flowable resin to the repair area<br />

and continue to “feather” the flowable composite<br />

over the beveled surface of the bisacrylic 3 to 4 mm<br />

beyond the repair area. Finally, finish with abrasive<br />

discs to original tooth contour for a seamless repair.<br />

Cementation<br />

Placement of porcelain veneers can be accomplished<br />

using dual-cured or light-cured resin<br />

cements. The veneers are first tried on individually<br />

to check margins, then collectively to evaluate contact<br />

and esthetics. A drop of water on the inside<br />

of the veneers can help to hold them in place for<br />

evaluation by the doctor and the patient. For most<br />

cases, transparent or clear resin cement will be the<br />

cement of choice.<br />

There are some clinicians who report a color change<br />

with time when using dual-cure tinted cements. It is<br />

the opinion of this author that color change in older<br />

veneer cases occurs because of color change in the<br />

tooth, not in the 10-micron layer of cement between<br />

the porcelain and the tooth.<br />

The reason dual-cured cements are selected by<br />

some clinicians is because of the ease of the cleanup<br />

process. These types of cements will reach a “gel<br />

phase” about two minutes after mixing. At that time,<br />

the operator can use an explorer or fine curette to<br />

remove cement excess prior to light curing. <strong>Dental</strong><br />

floss can also be passed through the interproximal<br />

areas to be sure they are free of cement. While performing<br />

the cement cleanup during the gel phase,<br />

the dental assistant stabilizes the restoration using<br />

finger pressure. Once the excess resin cement is<br />

removed, the restorations are light-cured. Using<br />

this technique will minimize any rotary finishing,<br />

and polishing should also be kept to a minimum.<br />

Light-cured cements can be used successfully if the<br />

operator has a tacking tip on the curing light and<br />

selectively “tacks” the center of the restoration on<br />

the tooth while leaving the cement at the margins<br />

uncured. The marginal excess is then removed with<br />

a brush and floss is used to clear the interproximal<br />

areas while stabilizing the restoration. A total cure<br />

is done once the cleanup is complete.<br />

As previously mentioned, some clinicians and<br />

researchers believe that dual-cure resin cements<br />

change color over time and affect the visual shade<br />

of the restoration. This may be true in the lab, but is<br />

this really happening clinically? If one takes a clear<br />

shade of resin cement and an A3 shade, places a<br />

drop of each on a glass slide, and squeezes another<br />

slide on top of the cements to simulate a restorative<br />

interface, an interesting thing occurs. It is difficult,<br />

if not impossible, to distinguish between the two<br />

colors because the cement layer is so thin. How<br />

much color can be squeezed into a 10-micron<br />

layer of cement? How does that “change” become<br />

visible behind an opacious layer of dentin porcelain<br />

followed by body porcelain? The “contact lens”<br />

effect does allow the color of the tooth to affect<br />

the final shade of a restoration if the ceramist does<br />

not lay down an opacious material first or if the<br />

restorative gap is too large so that the cement layer<br />

is too thick. 1-5<br />

Color change in older veneer<br />

cases occurs because of<br />

color change in the tooth.<br />

16 www.chairsidemagazine.com


Case Report<br />

Placement of the Initial<br />

Porcelain Veneer Restorations<br />

In 2002, my wife Michele expressed a desire to have<br />

porcelain veneers placed to enhance the esthetics of<br />

her smile. She presented with a Class I occlusion and<br />

had very thin, opalescent enamel that did not respond<br />

well to tooth whitening (Figs. 1–3). Her desire was to<br />

have a “brighter, more youthful-looking smile.”<br />

Following the methodology described above, the teeth<br />

were prepared using a minimal preparation technique<br />

(Fig. 4), master-impressed and then provisionalized<br />

using bisacrylic provisional material. A bleached white<br />

color of feldspathic porcelain was chosen, and the restorations<br />

were fabricated and finally cemented with<br />

a clear, dual-cured resin cement. Figures 5–7 show<br />

Michele’s retracted full-arch, postoperative full-smile<br />

and full-face views, respectively. Michele was thrilled<br />

with her new smile makeover!<br />

Figure 1: A preoperative full-face view of Michele prior to placement<br />

of her original set of porcelain veneers in 2002<br />

Figure 2: A full-smile preoperative view<br />

Figure 3: A retracted full-arch preoperative view<br />

Figure 4: A view of the maxillary and mandibular minimal veneer<br />

preparations. Note the value (brightness or darkness) of the prepared<br />

teeth. When fabricating porcelain veneers, the ceramist will lay down<br />

a thin opacious layer based on the “preparation shade” (stump shade)<br />

to block out the overall influence of that shade on the final visible<br />

shade of the restoration.<br />

Figure 5: The completed first set of maxillary and mandibular porcelain<br />

veneer restorations after delivery<br />

Upgrading Porcelain Veneer Restorations17


Seven Years Later<br />

Michele had never specifically commented that she<br />

noticed her veneers were not as bright as they were<br />

when placed because there was such a gradual change<br />

over time (Figs. 8–10). Compare the post-cementation<br />

photo, Figure 5, and the seven-year postoperative photo,<br />

Figure 9. A significant color shift is very noticeable<br />

when performing a direct comparison of these photographs.<br />

Being surrounded by the dental field, Michele<br />

was also aware that newer porcelains were being developed<br />

that were brighter in value than those that were<br />

available when her initial esthetic restorations were fabricated.<br />

She therefore expressed a desire to have her<br />

veneers redone.<br />

Although a color change was observed (Fig. 11), from a<br />

purely dental perspective, the initial restorations were<br />

still very serviceable, with no signs of fracture, wear<br />

or marginal breakdown. Knowing that conventional<br />

removal of these veneers with rotary instrumentation<br />

would result in removal of more healthy tooth structure,<br />

the dilemma was whether to intervene and replace<br />

the veneers, or wait until the restorations broke down<br />

and required replacement. As with most patients,<br />

Michele was not concerned with the potential loss of<br />

0.1 to 0.2 mm of tooth structure — she wanted brighter<br />

porcelain veneers!<br />

Figure 6: A full-smile view of the completed initial esthetic makeover<br />

Figure 7: A full-face view of the completed initial esthetic makeover<br />

Figure 9: A retracted full-arch seven-year postoperative view of the<br />

initial esthetic reconstruction. When compared with Figure 5, a definite<br />

change in tooth color of the restorations is apparent.<br />

Figure 10: A full-smile, seven-year postoperative view<br />

Figure 8: A full-face view of the initial esthetic makeover seven years<br />

after placement. Compare this to Figure 7. It is difficult at normal speaking<br />

distance to perceive a change in the color of the restored teeth.<br />

18 www.chairsidemagazine.com


It was decided to grant her request and upgrade her<br />

esthetic restorations. During this period of time, as an<br />

all-tissue laser user, it was discovered that the laser could<br />

be used to conservatively remove porcelain veneer<br />

restorations without further loss of tooth structure.<br />

It is believed that because the laser wavelength of<br />

the Er,Cr:YSGG laser seeks water, the resin cement is<br />

denatured and expands, causing the veneer to fracture<br />

and separate from the tooth. The veneer can then be<br />

easily removed using a scaler (Fig. 12). Michele had 10<br />

porcelain veneers on her maxillary arch, all of which<br />

were completely removed with the laser in less than<br />

10 minutes! The cement layer remained visible on<br />

the preparation surface (Fig. 13). Next, an Enhance ®<br />

point, a composite polishing point (DENTSPLY Caulk/<br />

DENTSPLY International; York, Penn.), was used to<br />

remove the cement from the preparation. Air abrasion<br />

can be used for this as well. After minor marginal<br />

adjustment of the preparations to compensate for a<br />

small amount of gingival recession on the mid-facial of<br />

some of the preparations (Fig. 14), a retraction cord was<br />

placed (Fig. 15), a new master impression was made and<br />

bisacrylic provisional restorations were placed (Fig. 16).<br />

Figure 11: The shade based on the VITA Lumin shade guide (Vident;<br />

Brea, Calif.) of the existing restorations is B1. The original restoration<br />

shade was “Hollywood White,” or bleached shade (B0). The patient’s<br />

desire is to have an upgrade to Bleach1 (BL1), which is the highest<br />

value of restorative material available.<br />

Figure 12: The Waterlase MD with a 600-micron tip is used to atraumatically<br />

remove the existing veneer restorations.<br />

Figure 13: The preparations after laser veneer removal. Note the resin<br />

cement is still present on the teeth.<br />

Figure 14: The preparations after polish with Enhance point and<br />

minor margin refinement<br />

Figure 15: Retraction cord is placed prior to making of the master<br />

impression.<br />

Upgrading Porcelain Veneer Restorations19


The ceramist then fabricated the newer, high-value porcelain<br />

veneers. Figure 17 shows the finished central<br />

incisor restorations. A new light-cured cement (Kleer<br />

Veneer [Pulpdent Corporation; Watertown, Mass.]) was<br />

used to cement the newly fabricated porcelain veneer<br />

restorations (Figs. 18, 19). Note that this veneer cement<br />

is totally transparent, unlike many other “untinted”<br />

resin cements on the market. It is the author’s opinion<br />

that this type of cement is particularly useful for very<br />

thin “no prep” veneers when blocking out tooth color<br />

is not required.<br />

At a subsequent visit, the process was completed on<br />

the mandibular arch. Figure 20 shows the mandibular<br />

veneers being removed with the Waterlase MD (Biolase<br />

Technology; Irvine, Calif.). The completed porcelain<br />

veneer esthetic upgrade can be viewed in Figures<br />

21–24. Note that clear porcelain was used at the gingival<br />

margins to gradually blend the root color at the restorative<br />

interface and make the margin less apparent.<br />

Figure 16: Bleached shade provisional restorations that were placed<br />

after completion of the master impression<br />

Figure 17: A view of the newly fabricated high-value maxillary<br />

central incisor porcelain restorations (Venus ® Porcelain [Heraeus;<br />

South Bend, Ind.])<br />

Figure 18: Kleer-Veneer light-cured veneer cement being placed into<br />

the porcelain veneer restoration. Note the complete lack of color in<br />

the cement.<br />

Figure 19: The upgraded high-value porcelain veneers cemented on<br />

the maxillary arch. Note the difference in value when compared to the<br />

mandibular restorations that have yet to be replaced.<br />

Figure 20: Removal of the initial mandibular ceramic veneers with the<br />

all-tissue laser<br />

20 www.chairsidemagazine.com


Conclusion<br />

Figure 21: A retracted full-smile view of the completed esthetic<br />

porcelain veneer upgrade<br />

“Wants-based” dentistry, especially that which is<br />

purely esthetic in nature, is often on a different<br />

timetable than conventional restorative or rehabilitative<br />

dentistry. Its “useful life” is not determined<br />

necessarily by marginal or occlusal breakdown, but<br />

by what the patient sees in the mirror. For some<br />

dentists, it is hard philosophically to remove and<br />

replace “serviceable” dental restorations. However,<br />

in this day of elective dentistry, we must realize that<br />

replacement of existing restorations can now be<br />

determined on esthetics alone … and this, at any<br />

moment, is done at the sole discretion of the<br />

“wearer.” In the author’s case: “Happy wife, happy<br />

life!” CM<br />

Dr. Robert Lowe is in private practice in Charlotte, N.C. He also lectures<br />

internationally and publishes on esthetic and restorative dentistry. Contact<br />

him at boblowedds@aol.com or 704-364-4711.<br />

Figure 22: A full-smile view of the completed esthetic upgrade<br />

Figure 23: A full-face view of the completed esthetic upgrade<br />

acknowledgment<br />

The author would like to acknowledge the artistic expertise of Vincent<br />

Devaud, CFC, MDT, of Vincent Devaud <strong>Dental</strong> Laboratory, Pasadena,<br />

Calif., for his work on this case.<br />

References<br />

1. Strassler HE. Minimally invasive porcelain veneers: indications for a<br />

conservative esthetic dentistry treatment modality. Gen Dent. 2007<br />

Nov;55(7):686-94.<br />

2. Malcmacher L. No-preparation porcelain veneers — back to the<br />

future! Dent Today. 2005 Mar;24(3):86, 88, 90-1.<br />

3. Etman MK, Woolford MJ. Three-year clinical evaluation of two<br />

ceramic crown systems: a preliminary study. J Prosthet Dent. 2010<br />

Feb;103(2):80-90.<br />

4. Guess PC, Strub JR, Steinhart N, Wolkewitz M, Stappert CF. Allceramic<br />

partial coverage restorations — midterm results of a 5-year<br />

prospective clinical splitmouth study. J Dent. 2009 Aug;37(8):627-37.<br />

5. Lowe RA. Shade instability: examine a root cause of mismatched<br />

ceramic restorations. <strong>Dental</strong> Products Report. 2008 Sep:116-122.<br />

Reprinted by permission of Oral Health, April 2011<br />

Figure 24: “Happy wife, happy life!”<br />

Upgrading Porcelain Veneer Restorations21


Photo Essay<br />

BruxZir ® Solid Zirconia<br />

Anterior Esthetic Challenge<br />

– ARTICLE by Michael C. DiTolla, DDS, FAGD<br />

This photo essay illustrates our laboratory’s recent advancements in improving the esthetic properties of BruxZir ® Solid<br />

Zirconia. Since the launch of the crown & bridge material in 2009, we have talked about BruxZir Solid Zirconia being “More<br />

Brawn Than Beauty.” As our R&D department refines our processes, improving the material’s translucency, the esthetics<br />

have continued to improve dramatically. What better esthetic challenge could there be for a material than using it to<br />

replace old crowns on tooth #8 and #9? BruxZir Solid Zirconia rises to the challenge in this case, but keep in mind, I have<br />

the advantage of in-house dental technicians, which always makes it easier to deliver great restorations. High-quality digital<br />

photographs can result in the same high-quality restorations almost as easily. After this case, we decided to upgrade the<br />

BruxZir Solid Zirconia motto to “More Brawn and Improving Beauty.” Continue reading to see if you agree!<br />

BruxZir Solid Zirconia Anterior Esthetic Challenge23


Figure 1: First Appointment — We are going to replace the PFM<br />

crowns on tooth #8 and #9 with BruxZir Solid Zirconia crowns. This<br />

will be a good test for our newest translucent formulation. You can<br />

see how inflamed the gingiva is with the old crowns in place, which<br />

could be an allergic reaction to the existing base-metal PFMs.<br />

Figure 2: The first step of any restorative procedure in the anterior<br />

should be to take the shade before the teeth become dehydrated.<br />

This is especially true when using lip and cheek retractors, as we are<br />

doing here (SeeMORE [Discus <strong>Dental</strong>; Los Angeles, Calif.]).<br />

Figure 3: I am using the VITA Easyshade ® Compact (Vident; Brea,<br />

Calif.) in the middle third of the tooth, with the tip flush against the<br />

tooth. I will shoot the shade in three spots in the middle third, in case<br />

I land on any shade anomalies.<br />

Figure 4: The VITA Easyshade Compact displays the shade in both<br />

VITA Classical shades and VITA 3D-Master ® shades. Having used<br />

both shade guides for many years, I strongly prefer the 3D-Master<br />

shade guide because of how well the shade tabs match natural teeth.<br />

Figure 5: After taking the shade, I hold the selected 2M1 3D-Master<br />

shade tab to the tooth, along with the 1M1 3D-Master shade tab for<br />

contrast. Of the spots I checked with the VITA Easyshade Compact,<br />

two were 2M1 and the third was 1M1, so I want to see how both<br />

shades look in the mouth.<br />

Figure 6: Now we photograph the shade tabs in the mouth. This is<br />

probably the most important part of communicating shade to the<br />

technician, so he or she can see how the natural teeth look compared<br />

to the selected shade guides. Rarely are they an exact match.<br />

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Figure 7: I then use an Ultradent syringe to place PFG gel (Steven’s<br />

Pharmacy; Costa Mesa, Calif.) into the sulcus of tooth #8 and #9. The<br />

gingiva is so irritated that it starts to bleed just because I bumped into<br />

it with a soft brush tip. This is never a good sign.<br />

Figure 8: Next I use my STA Single Tooth Anesthesia System ® device<br />

(Milestone Scientific; Livingston, N.J.) to individually anesthetize tooth<br />

#8 and #9. Infiltrations of the maxillary central incisors are some of<br />

the most painful injections we give as dentists, and there are some<br />

patients who really hate them. This was one of those patients.<br />

Figure 9: The STA has a pressure sensor that lets me know if I am in<br />

the PDL during these injections, which helps me determine whether I<br />

have profound anesthesia. I used to give these types of injections by<br />

hand, but I never knew if I was giving an effective injection.<br />

Figure 10: The Razor ® Carbide bur (Axis <strong>Dental</strong>; Coppell, Texas) is<br />

an aggressive carbide bur that easily cuts through porcelain and<br />

metal substructures. When used in combination with my KaVo<br />

ELECTROtorque handpiece (KaVo <strong>Dental</strong>; Charlotte, N.C.), it is<br />

simple to cut through an existing PFM in almost one continuous cut.<br />

Figure 11: Here I am torquing the crown with a Christensen Crown<br />

Remover (Hu-Friedy; Chicago, Ill.). As we continue to use more and<br />

more high-strength, all-ceramic crowns that are more difficult to<br />

remove, there will come a day when we will reminisce about how fun<br />

it was to remove PFM crowns.<br />

Figure 12: We will be removing some of the unhealthy tissue to<br />

improve esthetics and gingival health, so I use a periodontal probe<br />

to sound to bone, ensuring I have enough biologic width to safely<br />

remove some tissue. To eliminate the chronic inflammation, we will<br />

need a minimum of 3 mm from the free margin of the gingiva to the<br />

crest of the bone.<br />

BruxZir Solid Zirconia Anterior Esthetic Challenge25


Figure 13: I use my NV MicroLaser (Discus <strong>Dental</strong>) to remove<br />

1.5 mm of tissue. In addition to removing the unhealthy tissue, the<br />

diode laser helps me expose the crown margins that were buried<br />

subgingivally. This almost certainly contributed to the unhealthy<br />

gingiva that surrounded these two crowns.<br />

Figure 14: With the margins now clearly exposed, I use an 856-025<br />

bur (Axis <strong>Dental</strong>) with the water off and my KaVo ELECTROtorque<br />

handpiece set to 4000 rpm to slowly drop the margins to the new<br />

gingival level. We will finish the preps at the next appointment.<br />

Figure 15: There is really no way to take an impression today after<br />

our gingival recontouring and still have the crown margins in the right<br />

place, so my assistant is relining BioTemps ® Provisionals (<strong>Glidewell</strong><br />

Laboratories) on tooth #8 and #9 with Luxatemp provisional material<br />

(DMG America; Englewood, N.J.), to help the tissues heal over the<br />

next two weeks.<br />

Figure 16: Using a thin, perforated diamond disc (Axis <strong>Dental</strong>), my<br />

assistant opens the gingival embrasures between the temps to avoid<br />

blunting the interproximal papilla. She also makes sure the gingival<br />

margins aren’t overextended and the emergence profile is flat.<br />

Figure 17: We use TempBond ® Clear (Kerr Corp.; Orange, Calif.)<br />

to cement the BioTemps and avoid cement show-through in thinner<br />

temps. A word of caution with TempBond Clear: Use loupes to<br />

inspect around the temps and in the gingival embrasures to ensure<br />

no excess cement is left in place. This is an easy mistake to make<br />

with this clear cement.<br />

With the margins now clearly<br />

exposed, I use an 856-025 bur<br />

(Axis <strong>Dental</strong>) with the water off<br />

and my KaVo ELECTROtorque<br />

handpiece set to 4000 rpm<br />

to slowly drop the margins to<br />

the new gingival level.<br />

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Figure 18: Second Appointment — After two weeks, we remove<br />

the temps and clean the preps with a KaVo SONICflex scaler. I know<br />

of no better way to ensure all the temporary cement is removed from<br />

the preps than by using this scaler, especially for cases where we<br />

have used Durelon (3M ESPE ; St. Paul, Minn.) as our temporary<br />

cement for its retentive properties.<br />

Figure 19: There is still minor irritation around the gingival margin, so<br />

I do a little trimming with the diode laser right at the gingival margin<br />

prior to placing the first retraction cord. I was worried there would be<br />

bleeding during the cord placement if I didn’t take care of this now.<br />

Figure 20: With the irritated tissue gone, I can now place my first<br />

cord, Ultrapak ® cord #00 (Ultradent; South Jordan, Utah). Because<br />

this cord is hollow, it goes into place quite easily. I use this cord without<br />

solution (contains no epinephrine and has not been dipped in a<br />

hemostatic solution), as it could be in place for up to 45 minutes.<br />

Figure 21: I cut the cord on the lingual with curved scissors, while<br />

my assistant removes the cut end with cotton pliers. I cut the cord<br />

intraorally to make sure the two ends can be positioned flush to each<br />

other and do not overlap. This ensures there will be room for the<br />

second (top) cord.<br />

Figure 22: Because the placement of the first cord did not make<br />

the margin visually obvious, I place a second cord prior to<br />

refining the preparation. This top cord is an Ultrapak cord #2E<br />

(Ultradent). “E” refers to the epinephrine contained in the cord to<br />

help prevent bleeding.<br />

Figure 23: As I pack the #2E cord on tooth #8, you can see how this<br />

second cord has exposed the margin on tooth #9. Once each top<br />

cord is in place and the margins are exposed, we can begin the final<br />

finishing of the preps, which should take about 60 to 90 seconds<br />

per tooth.<br />

BruxZir Solid Zirconia Anterior Esthetic Challenge27


Figure 24: Now that I can finally see the margins, I use the same size<br />

bur I used before, but with a different grit (a fine grit 856-025 bur<br />

[Axis <strong>Dental</strong>], as indicated by the red stripe around the shank). The<br />

30-micron diamond particles will smooth the prep, especially on the<br />

margins where our coarse bur broke off chunks of tooth.<br />

Figure 25: Two ROEKO Comprecap Anatomic compression caps<br />

(Coltène/Whaledent; Cuyahoga Falls, Ohio) are moistened internally<br />

and placed on the preps. The patient is instructed to bite with medium<br />

pressure for 8 to 10 minutes. The Comprecaps ensure that the patient<br />

does not disrupt the cords with their tongue, and the pressure on the<br />

marginal gingiva provides added protection against bleeding.<br />

Figure 26: After my assistant removes the Comprecaps and pulls the<br />

top cord from tooth #9, I syringe medium body impression material<br />

around the preparation. Note the wide-open sulcus on the mesial of<br />

the tooth, which makes it almost impossible to miss this impression. I<br />

use medium body for my syringe material to prevent the material from<br />

tearing in the sulcus.<br />

Figure 27: For me, an ideal impression needs to have the prep<br />

margin clearly visible 360 degrees around the tooth, as well as<br />

1 mm of impression material beyond the margin. This extra 1 mm<br />

of impression material beyond the margin represents an impression<br />

of the root surface, leading to ideal margin placement and optimal<br />

emergence profiles.<br />

Figure 28: Here you can see how my assistant has placed the bite<br />

registration material exactly where it should be, covering the incisal<br />

third of the prepared teeth and the incisal third of the opposing teeth.<br />

Ideally, there should be no bite registration between the unprepared<br />

teeth and no contact with any soft tissue. The temporaries are then<br />

replaced, and the patient is asked to come back in two weeks for<br />

the try-in.<br />

Figure 29: Third Appointment — It’s been two weeks, the temps<br />

are off, the BruxZir Solid Zirconia crowns have been tried in and<br />

approved, and we are now placing a layer of desensitizer on the<br />

teeth (G5 All-Purpose Desensitizer [Clinician’s Choice; New Milford,<br />

Conn.]). Dr. Gordon Christensen’s research shows that two coats<br />

of this glutaraldehyde/HEMA solution actually increases the bond<br />

strength of adhesive cements.<br />

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Figure 30: I use a Warm Air Tooth Dryer (A-dec; Newberg, Ore.)<br />

for 10 seconds after applying both coats of the G5. Meanwhile, my<br />

assistant places Z-PRIME Plus (Bisco; Schaumburg, Ill.) inside the<br />

BruxZir crowns, and then we air thin that for 10 seconds. Z-PRIME<br />

Plus is a zirconia adhesive that helps strengthen the bond of the<br />

cement to the crown.<br />

Figure 31: After my assistant loads the BruxZir crowns with a resinmodified<br />

glass ionomer cement (RelyX Luting Plus Automix [3M/<br />

ESPE]) and the crowns are seated, I use a pinewood stick (Almore<br />

International; Portland, Ore.) to make sure they are fully seated. I then<br />

turn the stick sideways and hold it against the two incisal edges to<br />

verify they are the same length.<br />

Figure 32: One of the advantages of the new RelyX Luting Plus<br />

Automix is that you can tack cure the cement for five seconds with<br />

your light and then clean up the excess immediately, or you can do<br />

what you did in the past and wait two minutes for it to self-cure. It’s<br />

the only RMGI with a tack cure option available today.<br />

Figure 33: Here is an immediate, non-retracted shot of the BruxZir<br />

crowns on tooth #8 and #9 with the lips at rest. This is probably the<br />

easiest shot to take for crowns to look good because we are looking<br />

only at the incisal half, where reduction is nearly always adequate. The<br />

gingival third is where crown & bridge tends to look fake.<br />

I use a Warm Air Tooth Dryer (A-dec; Newberg, Ore.) for<br />

10 seconds after applying both coats of the G5. Meanwhile,<br />

my assistant places Z-PRIME Plus (Bisco; Schaumburg, Ill.)<br />

inside the BruxZir crowns, and then we air thin that<br />

for 10 seconds. Z-PRIME Plus is a zirconia adhesive that<br />

helps strengthen the bond of the cement to the crown.<br />

BruxZir Solid Zirconia Anterior Esthetic Challenge29


Before<br />

After<br />

Figure 34: A retracted view of the BruxZir crowns on tooth #8 and<br />

#9. I used to always under-reduce in the gingival third before I started<br />

doing the Reverse Preparation Technique, which ensures 1 mm of<br />

reduction in this area. Thanks to this technique, these crowns look<br />

decent even in the retracted view.<br />

Before<br />

The other amazing thing I<br />

notice is the facial anatomy<br />

that you see on the crowns<br />

in the lateral views. That flat<br />

facial profile in three planes is<br />

what makes a tooth look real.<br />

Because that anatomy is built<br />

into the CAD/CAM database,<br />

we are able to deliver it every<br />

time — provided the doctor<br />

gives us enough reduction.<br />

After<br />

Before<br />

Before<br />

After<br />

After<br />

Figures 35 a–c: Looking at this series of “after” pictures, the most amazing part is that there is not any porcelain on these BruxZir crowns; they<br />

are solid zirconia. This is why they have superior strength and are stronger than all other restorative materials, with the exception of cast gold.<br />

The other amazing thing I notice is the facial anatomy that you see on the crowns in the lateral views. That flat facial profile in three planes is<br />

what makes a tooth look real. Because that anatomy is built into the CAD/CAM database, we are able to deliver it every time — provided the<br />

doctor gives us enough reduction. The promise of CAD/CAM dentistry is being able to deliver predictable esthetics because the restoration<br />

contours are based on a library of ideal teeth, not on a technician’s skill level or whether he or she is having a good day. As BruxZir Solid Zirconia<br />

has become more translucent, I find myself more willing to use it for challenging esthetic cases like this one. While I’m not suggesting that you<br />

suddenly switch all of your anterior restorations to BruxZir crowns immediately, you may want to consider using it for patients with parafunctional<br />

habits, or patients with old PFMs like the ones in this case, where an esthetic improvement is essentially guaranteed. CM<br />

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Interview with Glenn Lombardi<br />

– INTERVIEW of Glenn Lombardi<br />

by Michael C. DiTolla, DDS, FAGD<br />

Interview with Glenn Lombardi33


34<br />

Dr. Michael DiTolla: Glenn, I like to bring<br />

you back at least once a year, sometimes more<br />

often, because in addition to doing websites for<br />

dentists, you now help them with their online<br />

presence and social media needs. This is an area<br />

that is changing so rapidly that I feel like I need<br />

to check in with you every couple months to find<br />

out what we, as dentists, should be doing. Talk<br />

to me about how social media has changed, and<br />

what you’d like to see dental offices doing.<br />

Glenn Lombardi: Well, it has progressed<br />

quite a bit in the last year. While most dentists<br />

are familiar with Facebook and Twitter,<br />

which are continually growing and evolving,<br />

there are now new social sites emerging like<br />

Google+ and location-based social platforms.<br />

We’ve also seen a rise in the influence of online<br />

reviews, which have become an essential<br />

piece of the whole social media aspect. It’s<br />

now more important than ever that dentists<br />

are aware of what is being said about them<br />

online, and that they are also being proactive<br />

in trying to interact with and influence positive<br />

dialog.<br />

MD: It seems like, despite your best intentions<br />

and attempts to treat every patient right, there<br />

are going to be times when you disappoint<br />

somebody, whether it’s clinically or whether it’s<br />

estimating what the insurance is going to pay.<br />

You just can’t hit it right on the head every time.<br />

And if the patient happens to be one of the people<br />

who spends a lot of time online, I think it’s fair<br />

to say that, even as a great dentist trying to do<br />

everything right, you can end up with a bad<br />

online review. I don’t think you have to kill a<br />

patient for that to happen, right?<br />

GL: Right. Just look at your favorite restaurant<br />

around the corner. You can go online and find<br />

100 good reviews, but for every 100 positive<br />

reviews, there will inevitably be an additional<br />

five or 10 negative reviews. And, unfortunately,<br />

the people who are typically most apt to give<br />

a review are those who are unhappy with<br />

a service. As a dentist, you can’t possibly<br />

satisfy every patient who walks through your<br />

door, but you can, in combination with great<br />

customer service, encourage your most loyal<br />

patients to give you a good review online on<br />

the major review sites, such as Yelp, Yahoo<br />

and Google.<br />

A dentist can do a couple things to make that<br />

happen. There are a handful of services out<br />

there that send patients an e-mail following<br />

their appointment that asks: How was the<br />

process? How was the service? Can you review<br />

us? At Officite, we offer a more hands-on<br />

approach. We provide our clients with simple<br />

instruction cards for giving a review that can<br />

be given to the patient as they leave the office.<br />

The patient can then give the dentist a positive<br />

review from their home computer. We also<br />

offer an in-office review solution, which<br />

allows a patient to review the dentist right<br />

there in the office, directly from their mobile<br />

device. While a dentist might get three, four<br />

or five negative reviews over time, if they’re<br />

encouraging patients throughout the year<br />

to leave positive reviews, by the end of the<br />

year they will have garnered enough positive<br />

reviews to offset a handful of negative ones.<br />

MD: Are dentists comfortable with this? For<br />

example, we’ve been hearing at practice management<br />

seminars for the last 15 years that we<br />

should be asking for referrals from our patient<br />

base, especially from the satisfied patients who<br />

we know get along with us and the staff. Also,<br />

we’ve always been told that, as the dentist, we<br />

should ask for the referral personally because<br />

that’s really powerful. But the reality is, a lot of<br />

dentists are uncomfortable asking for that type<br />

of referral. Are most of the dentists you’re working<br />

with comfortable asking for positive reviews,<br />

or are they done up front by the staff?<br />

GL: It’s really been a staff process. A dentist<br />

needs to train the staff on who to ask and<br />

what makes a patient a good candidate for a<br />

positive review. Some of the things you want<br />

to identify as a patient comes through are: Did<br />

they have a positive, outgoing personality? Are<br />

they consistently pleased with your services?<br />

Do they already have accounts set up on<br />

Google or Yahoo? Once you narrow down the<br />

“right” patient to ask, the process becomes<br />

a lot easier and more effective. You’re just<br />

asking a select few patients for reviews,<br />

not necessarily everyone who comes through<br />

the office.<br />

MD: That makes sense. I can see dentists being<br />

much more comfortable with your approach.<br />

You mentioned smartphones and iPads. My<br />

mom and I were sitting at one of my son’s hockey<br />

games, and I asked her a question about a book<br />

she was reading. She whipped an iPad out of her<br />

purse, and I was at once really proud of my mom<br />

and also horrified to see her with a piece of high


technology because it made my iPad seem slightly less cool. But I<br />

realize that for some people who are intimidated by computers,<br />

the iPad is actually a solution that doesn’t feel as intimidating<br />

as maybe the keyboard and the mouse did because you get to<br />

interact with it on a different level. Are you finding with these<br />

different platforms, like the computer, the iPad and the smartphone,<br />

that there are things that need to be optimized for the<br />

dental practice?<br />

GL: Most definitely. While a lot of people still use their<br />

home computers, there are now more than 250 million<br />

mobile phone users. Ninety million of those are using the<br />

Internet on those devices. There are some incredible stats<br />

out there on what is happening with smartphones, iPads<br />

and other portable devices. The number one thing you want<br />

to do is make sure your website is compatible with those<br />

devices. So if someone searches for your practice via an<br />

iPad, a Droid or an iPhone, you want to make sure that<br />

when they pull it up they get a mobile- or iPad-friendly<br />

version of the site. If someone is looking at your website<br />

via smartphone, they’re probably looking to call you,<br />

get directions, those sorts of things. They’re probably not<br />

looking to read up about flossing. You want to make sure<br />

the navigation is presented clearly, so that while they’re on<br />

that device they can get to the information they are looking<br />

for with a touch of a finger.<br />

In fact, last week I was at Google’s campus in California<br />

for a meeting, and they stated that there will be more local<br />

searches on mobile devices at some point in 2013 than there<br />

will be on personal computers. So this shift is happening<br />

fast. If more searches are being done on a smartphone or<br />

tablet device, then you need to make the necessary changes<br />

to ensure that your website is accessible from those devices<br />

because that’s where your patients are.<br />

MD: That makes sense, and I think that might actually be true<br />

for me as well. I have a nice computer at home, but it’s easy<br />

for my smartphone to get on the Internet and it’s easy to do<br />

searches. Plus, my phone is always right there with me.<br />

GL: Exactly. Think about all the patients that you communicate<br />

with in the office that then go and refer people back to you,<br />

be it their friends or acquaintances at work. If they’re sitting<br />

there talking to someone and they say: “Hey, you really<br />

need to see Dr. DiTolla. He’s great.” And the person says:<br />

“Wow, I’m looking for a new dentist. How can I reach him?”<br />

If they are sitting at a restaurant or wherever they might be,<br />

they might go straight to their iPhone or their Droid and<br />

pull up the information to read about that dentist and even<br />

make an appointment. So it’s a very simple concept that<br />

all these patients who are being referred to you, in most<br />

cases, are probably searching for you online before they<br />

come into your office or even contact you. So, again, not<br />

knowing what device they’re going to be on, you want to<br />

make sure you’ve optimized your website for that potential<br />

Interview with Glenn Lombardi35


new patient, whether they’re accessing you on a tablet, a<br />

work computer or an iPhone.<br />

MD: I agree with what you’re saying about the significance of a<br />

website. Recently I had to go see a physical therapist for an injury,<br />

and the first thing I did was pull him up online. I just wanted to<br />

see a picture of what he and his staff looked like. I don’t know if I<br />

expected them to look evil so I would know not to go there, but there<br />

was just something that made me feel more comfortable seeing<br />

who they were and what they looked like before I went. You<br />

know what I mean?<br />

GL: Yes, I understand that. It’s just a comfort level. Whether<br />

you’re being referred to a urologist or a dentist, it’s just<br />

human nature to search for them online. That is a big<br />

change from the traditional phone book. Just because your<br />

site may not be iPad-compatible today, it’s OK; it’s part of<br />

the process. So if you don’t have a website and are going<br />

to get one, it’s important to make sure the vendor you’re<br />

considering also offers a mobile solution. And if you already<br />

have a site, go back and revisit this with your provider and<br />

talk about how you can move, over the next couple months,<br />

from just a computer-centric website to one that can be<br />

accessed from any mobile device.<br />

MD: I guess at some point most of these things will be designed<br />

mainly for mobile devices and computers might be kind of an<br />

afterthought.<br />

GL: Yep. In fact, I was at a BIA/Kelsey conference last week,<br />

and they stated that less than 2 percent of the websites out<br />

there today are mobile-friendly. So while mobile is where<br />

we are headed, many people still need to take the next step<br />

to make their sites mobile-ready.<br />

MD: Yeah, I absolutely agree. In fact, our site, www.glidewell<br />

dental.com, has been entirely redone to be easily accessible<br />

from mobile devices. We’re big believers in what you’re saying.<br />

Going back to my physical therapist example, not only did<br />

I want to see what he and his staff looked like, I wanted to<br />

find their hours and see where they were located because I<br />

didn’t recognize the address. So it made it really simple for me<br />

to get there. And I can almost honestly say that, even though<br />

the referral was from a friend of mine, if they hadn’t had a<br />

website, I would have been a little bit leery about going over<br />

there. If a doctor doesn’t have a website, I guess it says to me<br />

that they’re just not trying hard enough; that they don’t care<br />

enough to help out their patients. Maybe he’s the best physical<br />

therapist in the world, but if he’s not willing to take that effort<br />

to make it a little bit easier for me to do business with him, I<br />

almost don’t want to deal with someone like that. On one hand,<br />

that sounds kind of lame, but on the other hand, I think a lot of<br />

people feel that way.<br />

A woman told me the other day she’s switching her dentist<br />

because his office still calls her home voicemail to confirm<br />

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appointments instead of texting her. She doesn’t<br />

want to go home and check her messages or<br />

check them remotely. She just wants to get a text<br />

message to see whether she has an appointment<br />

and what her appointment time is.<br />

GL: (laughs) Well, there you go.<br />

MD: Do you have any idea what percent of dental<br />

offices have a website today?<br />

GL: There are varying numbers out there.<br />

I think we can estimate that somewhere<br />

between 30 and 40 percent of all practices<br />

have what I would call a “functional” website.<br />

There’s probably another 20 to 30 percent<br />

that have something very simple or brochurelike<br />

that they might have put up four or five<br />

years ago that’s probably not functional at this<br />

point or visually appealing. But even here at<br />

Officite, half of the clients coming to us for<br />

new websites already have one. If you bought<br />

a site three, four or five years ago, it is also part<br />

of the process that you need to refresh and<br />

update it, both from a technology standpoint<br />

and from a look-and-feel standpoint. Your site<br />

is oftentimes the first impression a patient<br />

has of your practice. You don’t want your<br />

outdated site to send the message that your<br />

practice isn’t up to speed.<br />

MD: What do you think is keeping the other 40<br />

percent from getting a website?<br />

GL: I think the biggest issue is fear of the<br />

process; that it’s going to be too involved<br />

and too difficult. In a lot of cases, it might<br />

be somebody who is not technology savvy.<br />

Someone might be a great dentist, but when<br />

it comes to the Internet and computers,<br />

they’re still hesitant. Building a website can<br />

be a simple process, and if you pick the right<br />

provider, they will hold your hand through<br />

the whole process. They’ll walk you through<br />

all the things they need from you, and in<br />

some cases can have a site up and live on<br />

the Internet, within an hour of your time. So<br />

I think the biggest fear is of the process, and<br />

what dentists need to know is that it’s easy,<br />

and the longer they wait, the further behind<br />

they get.<br />

MD: So it’s not a money issue for most of the<br />

doctors you talk to? As it’s really not all that<br />

expensive, it seems like it wouldn’t be a money<br />

issue like investing in an expensive piece of<br />

technology would be.<br />

GL: No, it should not be a money issue because<br />

the return on investment is very clear and<br />

very simple, and you can measure it monthly,<br />

if not daily. If you just get one new patient a<br />

month, you’ve paid for the site in six to eight<br />

months. So it’s really not an investment issue,<br />

it’s an ease-of-process issue.<br />

When speaking with dentists without a<br />

website, I’ll often recommend that they do a<br />

search on Google for their name or practice<br />

name. In many cases, the search will show 10<br />

to 12 results from various directory listings,<br />

all with varying information on the dentist<br />

including patient reviews. So on the first page<br />

of the search results you’ve got 12 different<br />

sites telling everybody who you are and what<br />

other patients are saying about you. But if you<br />

have a site and you Google your name, your<br />

website is going to come up, and below it<br />

will be the directions to your practice, contact<br />

info, any articles you might have written, your<br />

blog. So the top half of the page is going to<br />

be links to your website where you are now<br />

telling your story. The patient won’t have to<br />

sort through directory listings that may or<br />

may not have accurate information about you<br />

because your website pages will be the first<br />

to appear. So not only is it important to have<br />

a website, but more importantly, you want to<br />

take control of your online presence. That’s<br />

just one of the things you have to look at.<br />

Every time someone refers a patient to you,<br />

they’re going to search your name online. Do<br />

you want a handful of directory sites telling<br />

your story, or do you want to tell your own<br />

story with your website?<br />

MD: It’s funny you mention that because I sometimes<br />

get e-mails from dentists who I want to call<br />

because they’ve asked a question that requires<br />

a longer answer. I’ll Google their names, and<br />

you’re exactly right, I get healthdirectory.net,<br />

doctoroogle.com, and all this other stuff that<br />

are not official pages by them. You wonder if<br />

the information or phone number is accurate.<br />

There are even friends of mine who don’t have<br />

a website. I’ll search their name, and you’ll<br />

see a review or two of them and it’s completely<br />

uncontrolled.<br />

When you talk about dentists not doing a website<br />

because of the work that is involved, do you<br />

think there’s a perception among dentists that if<br />

they do a website they’re going to have to start<br />

blogging? Is blogging one of the things where<br />

37


38<br />

they think: I can’t write, I don’t take clinical photographs,<br />

this is going to be a big problem, I don’t<br />

want to get invested in this?<br />

GL: You’re right, that is probably another fear<br />

they have. Obviously, you don’t have to blog,<br />

but it is a great educational tool. But even<br />

here at Officite, we will actually do the blogging<br />

for you, if you’d like.<br />

MD: Really?<br />

GL: Yeah, we think it’s a helpful service because<br />

blogging is an important part of taking<br />

control of your online identity.<br />

To take control of your online presence, you<br />

first want to have a website, so when someone<br />

searches for your name, your information<br />

comes up. If someone is on Facebook talking<br />

to their friend and their friend just had teeth<br />

whitening or new veneers and posted a<br />

picture, you want them to be able to link back<br />

to another Facebook page when they ask their<br />

friend who their dentist is. If they’re driving<br />

to your office and looking for directions and<br />

they pull up your site on an iPhone, you want<br />

to be able to give them directions quickly<br />

off that iPhone. So no matter where they’re<br />

looking or what they’re doing, you want<br />

to make sure you’re telling your story and<br />

you’re communicating with them on whatever<br />

device they’re using to look for you. Again,<br />

people go to Yelp. Have you gone onto Yelp<br />

and claimed your page for your practice and<br />

updated the information? Those are the things<br />

you need to do. If it’s too much for you, there<br />

are providers out there who can manage all<br />

of that. They can set up your Google Places<br />

page, set up your Yahoo page, complete your<br />

profile on Insider Pages, Citysearch, wherever<br />

it might be. You have no idea where the<br />

patient is going to look for you online, but<br />

you want to make sure when they do, you’re<br />

telling your story. You want to take control<br />

of your entire Internet presence. By having a<br />

provider do that, you take all the guesswork<br />

out of it because they’re doing it for hundreds<br />

of other dentists. Anywhere a patient looks<br />

for you, your story is going to be told and it’s<br />

going to be told by you.<br />

MD: That’s a great point. For somebody who<br />

has been out of school a little more than 20<br />

years now, I don’t think it was ever part of<br />

the deal when I graduated that one day what<br />

you did as a dentist would be rated online by<br />

non-professionals — not by other dentists, but by<br />

patients — and written up on a site like Yelp. It<br />

almost boggles the mind that dentists are being<br />

subjected to this scrutiny on a site like Yelp,<br />

but on the other hand, it probably has some<br />

positive benefits as well because it’s going to<br />

force dentists to try to be a little better. Or, it will<br />

force them to do at least what you’re saying and<br />

take control of that online presence. It’s a brave<br />

new world here when all of a sudden dentists<br />

are being subjected to online reviews on Yelp, as<br />

though they were the local dry cleaner down on<br />

the corner.<br />

GL: I agree. I don’t think it’s necessarily fair,<br />

but it’s no different than if that patient walks<br />

out of your office and tells the next 10 friends<br />

they see that they had a horrible experience.<br />

It’s really the same concept, except it’s online.<br />

Sometimes you don’t know that a patient left<br />

your office and said all those negative things<br />

about you, so the good news is an online<br />

presence allows you to improve yourself<br />

because you can always be monitoring what’s<br />

being said about your practice. You need to<br />

monitor your online reputation, and when<br />

there are negative reviews, maybe there is<br />

something to be learned from them. Maybe<br />

there is something you’re doing wrong or<br />

some way you are communicating improperly.<br />

Maybe a staff member is not communicating<br />

in front the way you think they are when<br />

you’re back working in the operatory. So from<br />

one aspect, it’s a great way to learn about your<br />

practice and maybe improve it, but secondly,<br />

you do want to take control of that online<br />

presence. While you might get some negative<br />

reviews, you want to make sure all those<br />

people who had positive reviews get online,<br />

so that it goes out to the community online.<br />

MD: You know, there might be a disgruntled<br />

patient who leaves your practice and tells 10<br />

people. I guess it could come up 10 times in<br />

conversation — they’d have to have a pretty<br />

strong vendetta against you — but when you put<br />

it online and there’s the potential for thousands<br />

of people to see it, including your family<br />

members, friends and other people, it seems like<br />

it has the potential to be a lot more damaging. So<br />

there is an absolute need to control this because<br />

one patient telling a few of their friends seems<br />

like a lot less of a big deal than somebody going<br />

online and saying it, where it has the potential<br />

to really spread. It’s unfortunate, I guess, for<br />

some dentists that they are going to have to take


control of this, but they’re probably going to be reviewed online<br />

whether they want to be or not. Some might say, “Hey, I never<br />

signed up for this.” Well, you don’t have to, right?<br />

GL: Right, you don’t have to sign up, it just happens. That’s<br />

why you want to put together some sort of plan to get<br />

positive reviews online because you can have the same<br />

positive experience happening to offset that negative.<br />

When talking about additional ways of communicating<br />

with the community, another great idea is getting your<br />

patients to “Like” your Facebook page and integrating<br />

the blog from your website into your Facebook page, so<br />

every time you or your service provider updates content<br />

on your blog and one of your patients “Likes” it, it’s going<br />

to show on their Facebook page and to their 250 friends.<br />

If you’re putting out good content, or if the provider is<br />

writing the blog for you and it’s quality, interesting content<br />

that patients are going to find helpful, what ends up<br />

happening when they “Like” those things on their Facebook<br />

page is that it then spreads exponentially to all their friends.<br />

So another great way to communicate positive things and<br />

educate your community is by using a simple blog and<br />

Facebook page. It’s not rocket science, but it’s a great<br />

way to maintain that positive presence about you and<br />

your practice.<br />

MD: I actually didn’t know that it worked that way. That’s really<br />

interesting. It sounds like your company will do the blogging<br />

for the dentists if they want you to, but can they also set up<br />

something where you guys would do the blogging for them for<br />

three months? And then if the doctor has an interesting case<br />

and takes some photos, or he wants to write something, could<br />

he write something for one month and then you guys could do<br />

the next three months? I mean, is it possible for the dentists to<br />

be able to intermittently blog and have you guys provide the<br />

content the rest of the time?<br />

GL: That’s exactly how our blog management program<br />

works. We’ve actually partnered with a company called<br />

Dear Doctor, publisher of Dear Doctor – Dentistry & Oral<br />

Health, a quarterly dentistry magazine written exclusively<br />

by dental healthcare professionals for the education and<br />

well-being of the general public. Articles they have written<br />

for their magazine can be posted to our clients’ blogs every<br />

week. It’s an automated process, so it requires little to no<br />

effort from the practice, but they are still getting highly<br />

educational and credible posts. If the dentist chooses, we<br />

can also craft personalized articles for the practice to give<br />

the dentist more input into each article without having to<br />

write them.<br />

MD: I had no idea you guys offered that second option. So if<br />

a dentist goes to a course and learns how to start delivering<br />

sleep apnea devices or snoring appliances, he can request blog<br />

Interview with Glenn Lombardi39


entries from you guys on those topics and you will write something<br />

and put it on his site to help attract those new patients?<br />

GL: Exactly. We’ll actually write the content for them based<br />

on different topic areas. It’s a great service and a great way<br />

to educate your patients on a regular basis while populating<br />

your website and social media sites with new, valuable<br />

information. Again, it’s all about making it easy and simple<br />

for the dentist. Most dentists have barely enough time in<br />

the day to see their patients, so it’s not always possible for<br />

them to write a blog post as well. That’s where Officite can<br />

really help out.<br />

MD: That’s a great idea. I don’t want to sound jaded, but for<br />

20 years we’ve told many people about brushing and flossing,<br />

and I’m not sure the message is getting through — at least not<br />

to males — so I can see a lot of dentists thinking: Hey, let’s blog<br />

on something other than brushing and flossing. Let’s do something<br />

on bleaching! I’ve got a bunch of bleach here that’s going<br />

to expire in three months. Or let’s do something on snoring, or<br />

let’s talk about this new all-ceramic crown. For them to be able<br />

to pick the topics and have you guys come up with information<br />

sounds like a great idea.<br />

To recap, it sounds like you certainly encourage dentists —<br />

almost say it’s mandatory — to have a website. It just doesn’t<br />

seem like there’s anything you can do for your practice that will<br />

give you as much bang for your buck as getting involved with a<br />

nice, up-to-date website and some active blogging.<br />

GL: Right. Today’s patients expect you to have a website<br />

that is current and educational. It’s not that expensive or<br />

difficult to launch a professional website, and the return on<br />

investment is very high. Nowadays, not having a website<br />

speaks louder than having one. CM<br />

Glenn Lombardi is president of Officite LLC, a leading national provider of premier<br />

websites and turnkey Internet marketing solutions for the dental community. Contact<br />

him at 800-908-2483, www.officite.com or glombardi@officite.com.<br />

40 www.chairsidemagazine.com


Is It Time to Do<br />

Routine Adult Pulpotomies?<br />

“Any intelligent fool can make things bigger and more complex. … It takes a touch of<br />

genius — and a lot of courage — to move in the opposite direction.”<br />

– Albert Einstein<br />

– ARTICLE and CLINICAL PHOTOS by<br />

Ellis J. Neiburger, DDS<br />

INTRODUCTION<br />

Two patients walked into two dental offices with the<br />

same problem. They each had a molar with deep caries,<br />

a pulp exposure, pain and fear. One patient chose traditional<br />

endodontic treatment and, after making several<br />

40-minute visits to his dentist, paid $1,200 and left “cured.”<br />

He later got a $1,000 crown to restore the tooth. The second<br />

patient had a one-visit pulpotomy and an alloy filling,<br />

which took 25 minutes. He paid $250 and left “cured.”<br />

Who got the better deal? For whom was the deal better,<br />

the dentist or the patient?<br />

As our nation’s prosperity continues to decline during this<br />

recession, and business, insurance and government benefits<br />

rapidly erode, fewer patients can afford traditional<br />

root canal therapy, yet the need for endodontic treatment<br />

is continually greater. The more people who delay routine<br />

dentistry (exams, prophylaxis, restorations) because<br />

of finances, time and other “excuses,” the more exposed<br />

pulps will eventually come into our offices. We are seeing<br />

this now. Fewer and fewer patients can afford or want<br />

root canal treatment. Endo is becoming the treatment of<br />

the rich and well-connected (insured), primarily because<br />

of the high cost of therapy (Fig. 1).<br />

So great is the cost of endo that extraction and implants<br />

have become a viable, though high-priced, alternative.<br />

Average U.S. prices for a molar endo range from $900 to<br />

$1,400. But for most patients, even those with a paltry<br />

$1,000 maximum on their dental insurance policies,<br />

extraction is generally the only practical and affordable<br />

treatment offered. They cannot afford the price of endo<br />

and often choose low-cost extractions as their only<br />

alternative. This unfortunate state of affairs will continue<br />

— if not grow — as our economy languishes and<br />

widespread un- and underemployment continues. And<br />

when “prosperity” does come back, in a year or three from<br />

now, it will never be (economically) the way it once was.<br />

Insurance and other employment benefits will be lower.<br />

Government-sponsored dental plans (e.g., Medicaid) will<br />

opt for the least expensive treatment. Endodontics, as we<br />

know it, will have to change.<br />

The average patient needs a low-cost, quick and comfortable<br />

alternative to traditional endodontics, besides extraction.<br />

They do not have the money, patience or resources<br />

to afford traditional endo in the way we have done it<br />

in the recent past. Many do not have the money to get<br />

implants, fixed bridges and other expensive replacement<br />

dental treatments, yet they want to save their teeth.<br />

42 www.chairsidemagazine.com


Figure 1: Example of traditional endodontic treatment. Pulp is<br />

removed and root canals are cleaned and sealed.<br />

Figure 2: Pulpotomy with amalgam restoration. Treatment done<br />

19 years ago. No symptoms reported.<br />

Endodontics is not the only issue, however. Usually the<br />

tooth, after endo treatment, will require an expensive<br />

crown and recommended post, which further stresses<br />

limited economies.<br />

Wouldn’t it be nice to offer our patients a cheap, quick<br />

and comfortable “magic bullet”; a medicine and filling<br />

placed in the infected or nonvital tooth which will<br />

render it asymptomatic, stable and serviceable for long<br />

periods of time? That is what a pulpotomy can be, and we<br />

can offer it without any special kits, training or expensive<br />

equipment.<br />

We dentists are morally obligated to help the growing<br />

mass of financially strapped patients, and the only technique<br />

that will meet this need, short of mutilating extractions<br />

and free endo, is the adult tooth pulpotomy.<br />

PULPOTOMY<br />

A pulpotomy is the removal of the dental pulp and<br />

the placement of medication that will halt infection<br />

and preserve the tooth. 1–3 There are numerous types of<br />

pulpotomies, such as the pulpectomy (removal of the<br />

pulp), partial pulpectomy, shallow pulpotomy (and its<br />

“deep” analogue) and radicular pulpotomy. All of these<br />

remove the pulp tissue, more or less. The emptied pulp<br />

chamber is filled with a germicidal medication, which<br />

destroys infective organisms and mummifies (fixes) any<br />

remaining tissue that could later contribute to a septic<br />

condition around the tooth. 1–6 Formocresol (FC) has<br />

been very popular with dentists for more than 100 years.<br />

The original Buckley’s formula for FC consists of 19<br />

percent formaldehyde and 35 percent cresote, plus<br />

fillers. 3–6 Glutaraldehyde, calcium hydroxide, zinc oxideeugenol<br />

(ZOE), mineral trioxide, ZOE with 6 percent<br />

paraformaldehyde (N2) and ferric subsulfate are some<br />

of the other medications in popular use. All of these<br />

cause cell death, mummify tissue and are theoretically<br />

mutagenic, though in the real world, no related cancer<br />

cases have ever been reported. 1,7 They render the infected<br />

tooth aseptic, and thus allow the tooth to remain in the<br />

mouth comfortably for years (Fig. 2).<br />

The typical pulpotomy procedure is to open the tooth’s<br />

pulp chamber, remove the decay and as much of the pulp<br />

tissue as practical, place the medication (e.g., FC) in the<br />

form of a cotton pellet or cement paste, and then close the<br />

tooth with a restoration (e.g., alloy, composite, crown). 1–4<br />

It is simple, quick and inexpensive. This is done in a<br />

The average patient needs a<br />

low-cost, quick and comfortable<br />

alternative to traditional<br />

endodontics, besides extraction.<br />

They do not have the money,<br />

patience or resources to afford<br />

traditional endo.<br />

Is It Time to Do Routine Adult Pulpotomies?43


Figure 3: Earliest pulpotomy discovered in a 200 B.C. Middle<br />

Eastern soldier. Note the radiolucency around the apex. There is<br />

no evidence as to when the pulpotomy was done clinically.<br />

Figure 4: Traditional endodontics 20 years after treatment. Note<br />

the periapical abnormalities and “short” root fill. Tooth is asymptomatic,<br />

signifying a successful treatment.<br />

single visit or several visits, depending on the initial infection<br />

and the response of the tooth. Since the advent of<br />

traditional endodontia, this technique has been usually<br />

reserved for deciduous teeth. 3<br />

Adult pulpotomies are not as popular with dentists today<br />

as they were 100 years ago. Historically, traditional endodontia<br />

has been reported to be a more reliable treatment<br />

than pulpotomy techniques, based on the rate of saved<br />

teeth and the longevity of their preservation. 8–26 However,<br />

new research is changing this view. 5,6,12–16<br />

The pulpotomy, as a therapeutic dental treatment, has a<br />

long history. It has been used for thousands of years. Zias<br />

reports a pulpotomy-endodontic treatment found in the<br />

tooth of a Middle Eastern, Hellenic-Nabatian soldier of 200<br />

B.C. 27 (Fig. 3). In this ancient case, the large radiolucency<br />

around the treated tooth’s apex shows a less-than-perfect<br />

therapeutic result, though the treatment may have been<br />

started just prior to death. Dentists throughout history<br />

commonly used adult tooth pulpotomies until the 1930s,<br />

when traditional endo was developed and promoted as<br />

being a more reliable pulpal therapy. 1–3,25,26 In 1964, endodontics<br />

became a recognized specialty.<br />

TRADITIONAL ENDODONTICS<br />

The object of traditional endodontics is to remove pulpal<br />

tissue and seal the canals to the apex area of the root 1–3,26<br />

(Figs. 1, 4). This is done with an ever-increasing complex<br />

of technology: devices and techniques such as Ni-Ti files,<br />

reamers, sealers, tissue diluents, microscopes, apex electronics,<br />

ultrasonics, lasers and piezo-electric actuators. 8<br />

By my count, there are 35 rotating file systems and five<br />

reciprocating instrument systems on the market at this<br />

time devoted just to cleaning canals. The progression of<br />

increasing complexity has caused the cost of doing endo<br />

to escalate to economically prohibitive levels for many<br />

people. The 4,000 endodontic specialists (with 253 new<br />

graduates per year) are not numerous enough to perform<br />

the estimated 24,000,000 root canal treatments needed<br />

each year. 8,18,19 This leaves most endodontics to be done<br />

by the general practitioner.<br />

Dentists throughout history<br />

commonly used adult tooth<br />

pulpotomies until the 1930s, when<br />

traditional endo was developed<br />

and promoted as being a more<br />

reliable pulpal therapy.<br />

Traditional endo has many drawbacks. Not only does it<br />

take much time, effort, investment (equipment cost) and<br />

skill, but to the long-suffering patient, it is often uncomfortable,<br />

involving anesthesia, rubber dams, long periods<br />

44 www.chairsidemagazine.com


The Root Canal Anatomy Project<br />

http://rootcanalanatomy.blogspot.com<br />

Figure 5: Multiple large apical openings on an extracted<br />

molar. Would they all be sealed using traditional endodontic<br />

techniques?<br />

Figure 6: Variety of canal shapes and connections complicating<br />

traditional endodontia techniques<br />

with the mouth open, retreatments, post-op sensitivity,<br />

blow-ups, blocked canals, separated files, apicoectomies,<br />

hypochlorite leaks, ledges, excessive biofilms, lateral<br />

canals, anastomoses, deltas, overfills, underfills, cracks,<br />

perforations and microsurgery (Figs. 1, 4–6). Today’s endodontic<br />

sealers and canal obturators (e.g., gutta-percha),<br />

though often tolerated, form leaky seals, seldom fill<br />

all voids in the canals and are associated with chronic<br />

apical irritation from leaking pathogens 9,10 (Figs. 4–6).<br />

This is why 96 percent of in situ-biopsied, endodontically<br />

treated teeth often have large accumulations of lymphocytes<br />

(in response to infection) found in the apical tissues<br />

years after treatment 9–11 (Fig. 5).<br />

Even though traditional endo has its problems and hazards,<br />

it provides a relatively excellent, consistent result in<br />

saving teeth (Figs. 1, 4). This result has been far better and<br />

more consistent than what was once found with many<br />

older adult pulpotomy techniques. 1–3,25,26 New research<br />

and techniques are changing this view. 3,4,12–16<br />

SUCCESS<br />

Traditional endodontic therapy is intended to preserve<br />

the diseased tooth. Whether the treatment is traditional<br />

endo, with its completely sealed canals, or a pulpotomy<br />

with mummified pulpal tissue, the measure of success is<br />

an asymptomatic, functional and disease-free, long-lived<br />

tooth (Figs. 1, 2, 4, 7–9). Traditional endodontia defines<br />

success as the treated tooth being asymptomatic, with<br />

no periapical (radiographic) pathology, and the sealers<br />

(e.g., gutta-percha) extending to the anatomic apex of<br />

each root. 3,10,11,26<br />

As time progresses, increasingly more stringent criteria<br />

are applied to the definition of “quality endo.” Some of<br />

these criteria are questionable. Must the canal be sealed<br />

exactly to the anatomic apex (Fig. 4)? Must the periapical<br />

tissue appear perfectly “normal” around the apex as<br />

seen on the radiograph (Fig. 7)? Must the tooth last 10 to<br />

30 years post treatment? Is it a success if it survives only<br />

eight years?<br />

96 percent of in situ-biopsied,<br />

endodontically treated teeth often<br />

have large accumulations of<br />

lymphocytes found in the apical<br />

tissues years after treatment.<br />

Pulpotomy success has similar criteria, except the canals<br />

are not completely sealed to the apex, and in some cases,<br />

asymptomatic, nonprogressive periapical abnormalities<br />

(e.g., root scars) are noted and periodically observed<br />

(Figs. 2, 7–9). Both treatment methods define the lack of<br />

Is It Time to Do Routine Adult Pulpotomies?45


Figure 7: Two Sargenti (N2) pulpotomy treatments after 15<br />

years. This technique is a combination of traditional endo and<br />

pulpotomy that includes full pulp removal, gutta-percha cone<br />

and ZOE-paraformaldehyde sealer placed in at least 75 percent<br />

of the canal.<br />

Figure 8: Ten-year-old pulpotomy treatment. Tooth is asymptomatic,<br />

but exhibits a static apical radiolucency.<br />

tooth-related pain, swelling, fistulas, mobility and intercanal<br />

pathology as needed for “success.” 6,17 Success in both<br />

methods is often dependent on case selection, as well as<br />

the skill of the dentist, good fortune and the cooperation<br />

of the patient. A nonvital molar, with a large crack running<br />

through the crown, is less likely to be successfully treated<br />

than an intact, otherwise healthy, but recently exposed<br />

tooth, regardless of which treatment method is used.<br />

The failure rate of traditional endo is varied: 5.3 percent<br />

are associated with significant pain 17 ; 18 percent of treated<br />

teeth are eventually lost, with a relative rate of 2 percent<br />

being lost each year; 6 percent are reported lost in six<br />

years; and 50 percent are lost 30 years after treatment. 2 Of<br />

traditional endodontic failures over the years, 60 percent<br />

fail due to prosthetic problems (e.g., tooth cracks, internal<br />

resorption), 32 percent fail due to periodontal concerns<br />

Between 74 and 86 percent of<br />

endodontically treated teeth are<br />

retained, even though they may<br />

have some radiographic signs<br />

of periapical abnormalities.<br />

and 9 percent fail due to purely endodontic considerations.<br />

18 Generally speaking, between 74 and 86 percent<br />

of endodontically treated teeth are retained, even though<br />

they may have some radiographic signs of periapical<br />

abnormalities 11,19 (Fig. 4).<br />

The history of the pulpotomy presents a mixed collection<br />

of successes and failures. Pulpotomy for deciduous<br />

teeth are routine and dependable. The deciduous tooth,<br />

pretreated or not, responds well to pulpotomies and is<br />

required to last only a few years in the mouth before it is<br />

exfoliated (Fig. 10). Long-term pulpotomy success is not a<br />

consideration in deciduous teeth. Pulpotomies in permanent<br />

or adult teeth sometimes present failure because of<br />

fractured and leaking restorations. This is partially due to<br />

the expectation that a damaged/repaired tooth should last<br />

an ever-increasing lifetime. Another reason for past pulpotomy<br />

failures was an economic issue resulting in a weak<br />

restoration (e.g., amalgam) being placed in the treated<br />

tooth instead of a strong, but expensive crown. A large<br />

amalgam placed in a bombed-out tooth will often leak<br />

after a few years of wear. Recent reports have showed an<br />

increasing rate of success with adult pulpotomies, even<br />

for extended periods of time 4,6,12,13,16 (Figs. 2, 7–9).<br />

DeRosa has shown a 65 percent success rate of pulpotomies<br />

after eight years’ follow up. 20 Aguilar did a metaanalysis<br />

of PubMed adult pulpotomy studies, finding a<br />

73 to 99 percent success range over three years. 13 Witherspoon<br />

described a 95 percent success rate for pulpotomies<br />

46 www.chairsidemagazine.com


Figure 9: Nine-year-old pulpotomy. Tooth is asymptomatic and<br />

fully functional.<br />

Figure 10: Standard deciduous tooth pulpotomy<br />

after 1.5 years. 21 Barrieshi-Nusair reported a 90 percent<br />

success rate of pulpotomies after two years. 22 Qudeimat<br />

presented a 92 percent success rate using CaOH pulpotomies<br />

after three years. 4 Noorollahian demonstrated a 94<br />

percent success rate after two years. 23 Honegger reported<br />

in a study of 123 teeth an 83 percent success rate after<br />

seven years. 24 These recent reports show adult tooth pulpotomies<br />

can have a success record approaching, if not<br />

surpassing, that of traditional endodontics. 10,17,19<br />

PULPOTOMY STUDY<br />

I did a study of 500 adult tooth pulpotomies over a sixyear<br />

period. Patients were selected on two levels: 1) they<br />

had pulp exposures in restorable teeth, and 2) they were<br />

given the option of traditional endodontics, pulpotomy or<br />

extraction. Those who chose pulpotomy paid the same<br />

fee as an extraction and were offered a free extraction<br />

if the results of the pulpotomy were not to their liking.<br />

The patients were fully informed of the options and<br />

potential problems. Economics was the major factor in<br />

their decision.<br />

The pulpotomy teeth were radiographed before treatment,<br />

and at six-month and two-year recall intervals.<br />

Only 302 patient pulpotomies returned for their two-year<br />

recall, making this, in reality, a study of 302 patients: the<br />

largest ever conducted to date. Semiannual checkups<br />

extended for most of the patients well into three years,<br />

after which time normal patient attrition reduced the<br />

numbers being followed on further visits. The longest<br />

patient pulpotomy followed was for 19 years. Success was<br />

measured by the asymptomatic condition of the tooth (no<br />

pain or mobility), and the absence of overt radiographic,<br />

intercanal or periapical pathology. Patients who experienced<br />

pulpotomy failure were encouraged to have the<br />

tooth retreated at no cost.<br />

The pulpotomy consisted of air rotor access to the pulp,<br />

removal of the coronal pulp tissue and decay, placement<br />

of a cotton pellet with Buckley’s FC formula, and then<br />

restoration with a ZOE base and amalgam filling. In a<br />

few cases where the patient could afford it, a cast crown<br />

was placed. Patients with “hot” teeth were given antibiotics<br />

and pain medications prior to treatment. Average<br />

operative time was 30 minutes.<br />

Here are the clinical results:<br />

8 percent had some degree of pain and needed<br />

pain medications<br />

8 percent had teeth that failed and were eventually<br />

extracted<br />

25 percent had problems requiring repeat of the<br />

pulpotomy<br />

68 percent had no problems<br />

Is It Time to Do Routine Adult Pulpotomies?47


There are theoretical concerns over the mutagenic effects<br />

of FC and other pulpotomy medications. Eugenol, glutaraldehyde,<br />

zinc oxide and silver points are also theoretically<br />

mutagens, however, and are used extensively in traditional<br />

endo. 5–7 None of these agents have been associated with<br />

overt neoplastic changes in the real world because so little<br />

of the material is used in pulp therapy. 5–7 They are perfectly<br />

safe.<br />

Figure 11: Formocresol pulpotomy. Placing the FC soaked<br />

cotton pellet into the pulp chamber of the tooth.<br />

Over the two-plus years of this study, patients experienced<br />

68 percent initial success. Most of the patients did<br />

well with their first pulpotomy. Another 25 percent experienced<br />

flare-ups and required an additional pulpotomy<br />

retreatment and new restoration. This was primarily due to<br />

large amalgam restorations cracking and allowing contaminants<br />

to enter the pulp chamber. Thus, 92 percent of the<br />

pulpotomies eventually succeeded, while 8 percent of the<br />

pulpotomies failed and resulted in extraction or further<br />

treatments using traditional endodontics. This degree of<br />

success is comparable to traditional endodontics. 2,11,18,19,25<br />

PROBLEMS<br />

In the past, major difficulties with adult pulpotomies involved<br />

them being unpredictable in outcome and a bias,<br />

especially in North America, favoring traditional endo as<br />

a competing technique. 1–3,25,26 Some pulpotomies present<br />

problems; often, a few years after treatment, the teeth may<br />

produce a static, periapical radiolucency on radiographs<br />

that is asymptomatic and seldom progresses 25 (Fig. 8).<br />

Some clinicians consider this a failure, while others do<br />

not because the patient is comfortable, asymptomatic and<br />

functioning for years 3-6,12–16 (Figs. 4, 9). Occasionally, cases<br />

of adult pulpotomy result in the tooth’s canals ossifying<br />

or exhibiting resorption, though this is also seen in traditional<br />

endodontic treatment. 23,25,26 These complications<br />

make traditional endo, when attempted at a later time,<br />

more difficult. Such problems may be due to inadequate<br />

amounts of pulpotomy medication being used or the coronal<br />

seal (restoration) leaking, allowing the loss of the<br />

medication and leakage of microbes into the tooth.<br />

When compared to the difficulty and the cost of traditional<br />

endodontics, pulpotomies excel. It only takes a few<br />

minutes to reopen a failing pulpotomy tooth, insert more<br />

pulpotomy medication (e.g., FC) and replace or patch the<br />

restoration (Fig. 11). What is needed is more research on<br />

the most efficient and dependable adult tooth pulpotomy<br />

techniques and medications. Though this need has been<br />

apparent for more than 50 years, little work has been<br />

done and there seems to be a sinister, ethical dilemma<br />

in play.<br />

ARE ENDODONTISTS BIASED?<br />

The endodontic specialty community controls endodontic<br />

research, including pulpotomy science. Compared to<br />

North American research involving traditional endo, adult<br />

pulpotomies research is, in comparison, minuscule and<br />

has been so for decades. An Internet PubMed search<br />

produced 144 adult pulpotomy papers in the literature,<br />

most describing molar treatments in young adults. Those<br />

involving mature teeth were most-commonly published in<br />

predominately non-U.S. countries. 4–6,12–17,20–22 In contrast,<br />

traditional endodontics has well over 10,000 articles<br />

recommending traditional endodontics. 1–3 This is not a<br />

simple coincidence. There is a reason for this imbalance,<br />

and I believe it lies with the endodontic specialty.<br />

An Internet PubMed search<br />

produced 144 adult pulpotomy<br />

papers in the literature, most<br />

describing molar treatments in<br />

young adults. … In contrast,<br />

traditional endodontics has well<br />

over 10,000 articles recommending<br />

traditional endodontics.<br />

48 www.chairsidemagazine.com


Endodontics, as practiced today, is a complex, expensive<br />

operation with 4,000-plus specialists devoting their entire<br />

practices to the subject. In this specialty, as well as in<br />

general practice, traditional endo is a very profitable<br />

procedure producing high fees for minimal, though<br />

demanding, work and materials. It is a cash cow, and<br />

many dentists milk it.<br />

What would happen if a dependable, simple, quick<br />

and low-cost pulpotomy technique for adult teeth was<br />

promoted? It would, overnight, nullify the need for traditional<br />

endodontics and the people who practice it. GPs<br />

would do financially well because they could focus on<br />

restoring more teeth saved by the technique. Endodontists,<br />

unfortunately, would suffer greatly because their<br />

skills and service to the patient would be eclipsed. No<br />

one would want an expensive, time-consuming traditional<br />

endodontic treatment when they could have an inexpensive,<br />

quick, dip-a-pellet-in-the-pulp-chamber pulpotomy.<br />

Not only would endodontic specialists economically suffer,<br />

but the endo equipment manufacturers, distributors,<br />

dealers, book publishers, journal editors (paid advertising),<br />

dental school programs, educators and so on would<br />

suffer the economic losses caused by universal use of<br />

adult pulpotomies and gradual marginalization of traditional<br />

endo. There are exceptions to this scenario, but<br />

they are in the minority.<br />

In the real world, few people will willingly destroy their<br />

professions and livelihoods if they can help it, and the<br />

best way of protecting their turf is to isolate, denigrate<br />

and force adult pulpotomies to the margins of dentistry.<br />

It is the endodontists in dental school programs who<br />

write the textbooks, journal articles, approve the curriculum<br />

and teach the next generations of dentists. It is the<br />

endodontists who are most closely listened to (concerning<br />

endodontic matters) at professional meetings and the<br />

bureaucracies of many dental organizations. 7,28 These are<br />

the people who advise the journal editors (as to what is an<br />

acceptable endo paper for the journals) and state boards<br />

of dentistry (licenses), and serve as expert witnesses<br />

in malpractice trials as to what “proper” treatment (e.g.,<br />

endodontic standard of care) should be. There is a lot of<br />

money riding on the status quo of traditional endo and,<br />

though there are some exceptions, most dentists involved<br />

in traditional endodontics are biased concerning one technique:<br />

their favorite technique, which they have invested,<br />

perfected, espoused and taught over their lifetime.<br />

I believe this bias is why so few pulpotomy articles are<br />

published or research encouraged. This is the present<br />

state of our profession. If you doubt this is or could be<br />

happening, study the 50-plus years of machinations surrounding<br />

the Angelo Sargenti endodontic technique (N2),<br />

where a paraformaldehyde-containing sealer (pulpotomy)<br />

is placed in the pulp chamber and roots of adult teeth. 3,28<br />

The technique is quick, easy and relatively inexpensive,<br />

popular in Europe, and there is some excellent scientific<br />

research supporting it. 28 Many in the endodontic community<br />

have been somewhat less than candid and fair with<br />

the investigation and research of this competing technique.<br />

3,28 If it can happen to the Sargenti technique, it will<br />

also happen to other adult pulpotomy techniques.<br />

How can pulpotomies withstand the pressure of traditional<br />

endodontics? Pulpotomy as a technique has three<br />

outstanding qualities that cause it to outshine other competing<br />

techniques: it is quick, easy to do and low in cost.<br />

In this economy, money talks the loudest. If an insurer,<br />

government bureaucrat or out-of-pocket patient can have<br />

a tooth treated for significantly less money (pulpotomy)<br />

than traditional endo (more cost), guess which technique<br />

will be approved and which will be rejected?<br />

WHAT CAN WE DO?<br />

More clinical research must be done, and it will probably<br />

be the general dentists who will do it. Different pulpotomy<br />

techniques should be documented and followed for years,<br />

as longevity of the treatment is the most important issue.<br />

The dental societies, journal editors and dental school<br />

alumni must encourage this effort. <strong>Dental</strong> journal editors,<br />

especially, must seek out broad-minded reviewers/<br />

referees for endo-pulpotomy articles, not just dump them<br />

for review to a biased specialist. <strong>Dental</strong> school alumni<br />

should pressure their school’s endodontic departments to<br />

do more pulpotomy research and publish unbiased results.<br />

<strong>Dental</strong> society leaders must also be encouraged to support<br />

pulpotomy research.<br />

In our practices, we should do more pulpotomies in cases<br />

where our patients would otherwise have the tooth extracted<br />

due to economic considerations. This is becoming<br />

easier to do because fewer patients can afford the<br />

alternative of traditional endo. Inform the patient of<br />

the options, negatives and benefits of this treatment.<br />

Many will leap at the chance to save their teeth without<br />

We should do more pulpotomies<br />

in cases where our patients would<br />

otherwise have the tooth extracted<br />

due to economic considerations.<br />

Is It Time to Do Routine Adult Pulpotomies?49


expensive endodontics. If the pulpotomy fails, there is<br />

no net loss because the tooth would already have been<br />

extracted. Retreatment is easy and usually effective. Price<br />

adult pulpotomies at reasonable levels so more people<br />

will choose them. Keep track of your cases and publish<br />

results when you can. I find that formocresol pulpotomies<br />

deliver excellent results and present no ethical problems<br />

if the patient is fully informed of the advantages and disadvantages.<br />

It is important that their cases be followed.<br />

Try it. The time is right.<br />

SUMMARY<br />

As the new economic realities continue to mold our<br />

healthcare system, traditional endodontic treatment is<br />

becoming the treatment of choice for only the rich and<br />

well-insured. The average patient, with limited financial<br />

resources, needs a way of preserving their cariously exposed<br />

adult teeth, and adult pulpotomies are the answer.<br />

A pulpotomy can preserve the tooth, eliminate pain and<br />

infection, and be done quickly, inexpensively and with<br />

minimal effort. It can save teeth, and new research demonstrates<br />

that it can be as effective as traditional endodontics.<br />

This service should be offered to our patients. It<br />

is the ethical thing to do. CM<br />

Author’s note: With the exception of cropping (trimming), all images have not<br />

been digitally or otherwise edited or embellished by the author.<br />

Dr. Ellis Neiburger is a general practitioner in Waukegan, Ill. Contact him at<br />

847-244-0292 or eneiburger@comcast.net.<br />

REFERENCES<br />

13. Aguilar P, Linsuwanont P. Vital pulp therapy in vital permanent teeth<br />

with cariously exposed pulp: a systematic review. J Endod. 2011<br />

May;37(5):581–7. Epub 2011 Mar 5.<br />

14. Bjorndal L, et al. Treatment of deep caries lesions in adults: randomized<br />

clinical trials comparing stepwise vs direct complete excavation,<br />

and direct pulp capping vs partial pulpotomy. Eur J Oral Science. 2010<br />

Jun;118(3):290–7.<br />

15. Eghbal MJ, Asgary S, Baglue RA, Parirokh M, Ghoddusi J. MTA<br />

pulpotomy of human permanent molars with irreversible pulpitis. Aust<br />

Endod J. 2009 Apr;35(1):4–8.<br />

16. Caliskan MK. Pulpotomy of carious vital teeth with periapical involvement.<br />

Int Endod J. 1995 May;28(3)172–6.<br />

17. Balto K. How common is tooth pain after root canal treatment? Evid<br />

Based Dent. 2010;11(4);114.<br />

18. Karabucak B, Setzer F. Criteria for the ideal treatment option for failed<br />

endodontics: surgical or nonsurgical? Compend Cont Educ Dent.<br />

2007 Jun;28(6):304–10.<br />

19. Friedman S, Mor C. The success of endodontic therapy: healing and<br />

functionality. Oral Health. 2005 May:25–41.<br />

20. DeRosa TA. A retrospective evaluation of pulpotomy as an alternative<br />

to extraction. Gen Dent. 2006 Jan-Feb;54(1):37–40.<br />

21. Witherspoon DE, Small JC, Harris GZ. Mineral trioxide aggregate pulpotomies.<br />

J Am Dent Assoc. 2006 May;137(5):610–8.<br />

22. Barrieshi-Nusair KM, Qudeimat MA. A prospective clinical study of<br />

mineral trioxide aggregate for partial pulpotomy in cariously exposed<br />

permanent teeth. J Endod. 2006 Aug;32(8):731–5. Epub 2006 Jun 23.<br />

23. Noorollahian H. Comparison of mineral trioxide aggregate and formocresol<br />

as pulp medicaments for pulpotomies in primary molars. Br Dent<br />

J. 2008 Jun 14;204(11):E20. Epub 2008 Apr 18.<br />

24. Honegger D, Holz J, Baume LJ. Long-term clinical supervision of<br />

direct pulp capping (performed by the students of the School of<br />

Dentistry, Geneva). SSO Schweiz Monatsschr Zahnheilkd. 1979 Oct;<br />

89(10):1020–41.<br />

25. Ward J. Vital pulp therapy in cariously exposed permanent teeth and its<br />

limitations. Aust Endod J. 2002 Apr;28(1):29–37.<br />

26. Weine F. Endodontic Therapy. 5th ed. St Louis: Mosby,1996:722–49.<br />

27. Zias J, Numeroff K. Ancient dentistry in the Eastern Mediterranean: a<br />

brief review. J Israel Exploration. 1986;36:65–7.<br />

28. Arzt A. Anti Sargenti research is flawed. J Am Endo Soc. 2011<br />

Summer;124:4.<br />

Copyright © 2011 by E. Neiburger.<br />

1. Seltzer S. Endodontology. 2nd ed. Philadelphia, Pa: Lea & Febiger, 1988:<br />

249–382.<br />

2. Torabinejad M, Walter R. Endodontics. 4th ed. St. Louis: Saunders, 2009:<br />

224–87.<br />

3. Ingle J, Bakland L. Endodontics. 4th ed. Philadelphia, Pa: Lea & Febiger,<br />

1994:26–30,224–9.<br />

4. Qudeimat M, Barrieshi-Nusair KM, Owais Al. Calcium hydroxide vs mineral<br />

trioxide aggregates for partial pulpotomy of permanent molars with deep<br />

caries. Eur Arch Paediatr Dent. 2007 Jun;8(2):99–104.<br />

5. Cohen BI, Pagnillo MK, Musikant BL, Deutsch AS. Formaldehyde evaluation<br />

from endodontic materials. Oral Health. 1998 Dec;88(12):37–9.<br />

6. Asgary S, Ehsani S. Permanent molar pulpotomy with a new endodontic<br />

cement: A case series. J Conserv Dent. 2009 Jan;12(1):31–6.<br />

7. American <strong>Dental</strong> Association, Council on <strong>Dental</strong> Therapeutics. The use of root<br />

canal filling materials containing paraformaldehyde. 1986.<br />

8. Nasseh A. The evolution of endodontics. Inside Dentistry. 2011 Jun;7(6):88–9.<br />

9. Hugh CL, Walton RE, Facer SR. Evaluation of intracanal sealer distribution<br />

with 5 different obturation techniques. Quintessence Int. 2005 Oct;36(9):<br />

721–9.<br />

10. Lin LM, Rosenberg PA, Lin J. Do procedural errors cause endodontic treatment<br />

failure? J Am Dent Assoc. 2005 Feb;136(2):187–93.<br />

11. Hollanda AC, Estrela CR, Decurcio Dde A, Silva JA, Estrela C. Sealing ability<br />

of three commercial resin-based endodontic sealers. Gen Dent. 2009 July-<br />

Aug;57(4):368–73.<br />

12. Asgary S, Eghbal MJ. A clinical study of pulpotomy vs root canal treatment<br />

of mature molars. J Dent Res. 2010 Oct;89(10):1080–5. Epub 2010 Jun 18.<br />

50 www.chairsidemagazine.com


– ARTICLE and CLINICAL PHOTOS by<br />

Elliot Mechanic, DDS<br />

in praise<br />

of<br />

electric<br />

Handpieces<br />

<strong>Dental</strong> manufacturers<br />

have<br />

provided the<br />

profession with<br />

“smart” technologies,<br />

making<br />

the daily delivery<br />

of dentistry<br />

much easier and<br />

more efficient.<br />

<strong>Dental</strong> technologies, techniques and<br />

materials allow us to achieve results<br />

that were considered unachievable just<br />

several years ago. The public’s appreciation<br />

for dentistry and its presence<br />

in the media is at an all-time high.<br />

Whereas dentists used to be associated<br />

with pain, held in fear and regarded as<br />

“drillers, fillers and billers,” today they<br />

are recognized not only as healers, but<br />

as artists. We have come a long way!<br />

<strong>Dental</strong> manufacturers have provided<br />

the profession with “smart” technologies,<br />

making the daily delivery of<br />

dentistry much easier and more efficient.<br />

Auto-mix materials, advances in<br />

adhesives, and computer and imaging<br />

technologies have revolutionized the<br />

profession. However, there has been<br />

little change to the piece of dental<br />

equipment that patients fear most: the<br />

“drill.” The handpiece is the most frequently<br />

used tool in the dental office,<br />

as it performs intraorally for tooth<br />

preparation and oral surgery, as well<br />

as extraorally for polishing and adjustments.<br />

Over the past several years, the<br />

use of electric handpieces in North<br />

America has been growing, and various<br />

manufacturers offer electric units.<br />

Although marked as a “new” technology,<br />

the use of electric handpieces is<br />

not new at all, as they have been used<br />

worldwide for many years. Dentists in<br />

many countries have long practiced in<br />

small single-room operatories in older<br />

buildings where air lines cannot be<br />

brought from a central compressor to<br />

a dental unit have been dependent on<br />

electrically powered units.<br />

52 www.chairsidemagazine.com


Figure 1: Electric handpiece units<br />

Figure 4: Subsequent depth cuts<br />

Figure 2: Occlusal reduction with Great White<br />

Ultra carbide (GWU 856-018)<br />

Figure 5: Joining the depth cuts<br />

Figure 3: Initial depth cut<br />

Electric handpieces ...<br />

provide a greater<br />

concentricity of the<br />

rotating bur during<br />

tooth preparation,<br />

causing less “wobble”<br />

than air-driven units.<br />

Electric handpiece technology sits<br />

somewhere between the conventional<br />

air-driven high- and low-speed, as it<br />

generates up to 200,000 rpm of rotation,<br />

which is far less than the 400,000-<br />

plus rpm of air-driven units. However,<br />

they are far more efficient, as they<br />

have more than three times the cutting<br />

power (60 W vs. less than 20 W).<br />

The electric handpiece will not slow<br />

down, stall or stop when the bur is applied<br />

to tooth structure or restorative<br />

materials. It cuts continually with constant<br />

torque. Electric handpieces also<br />

provide a greater concentricity of the<br />

rotating bur during tooth preparation,<br />

causing less “wobble” than air-driven<br />

units. This creates more precise margins,<br />

less heat buildup and less bur<br />

chatter, resulting in a more defined<br />

and cleaner cut. They also don’t create<br />

the high-pitched whining sound that<br />

makes patients cringe in fear, which is<br />

a huge psychological bonus.<br />

In my operatories, both high-speed<br />

and slow-speed tasks have been<br />

assumed by electric motors. In fact,<br />

we use two units to eliminate the<br />

need for changing handpiece heads<br />

and settings (Fig. 1). However, one<br />

handpiece and controls can easily<br />

serve as both a high-speed and lowspeed.<br />

The electric handpiece has<br />

become an indispensable tool for<br />

crown preparation.<br />

Crown Preparation<br />

We begin our initial reduction using a<br />

Great White Ultra carbide #856-018 (SS<br />

White Burs; Lakewood, N.J.) in order<br />

to reduce 1.5 to 2 mm from the occlusal<br />

surface of the tooth (Fig. 2).<br />

This makes the subsequent axial reduction<br />

easier, as there is less surface<br />

area to reduce. Depth cuts are<br />

then placed (Figs. 3, 4) and are joined<br />

(Fig. 5), creating a consistent axial reduction<br />

of 1 mm. The Great White burs<br />

are large and cut very efficiently due<br />

to their dentated form. Conventional<br />

diamond instruments clog during bulk<br />

reduction in crown preparation, as<br />

their diamond particles clog with debris<br />

from the cut tooth and restorative<br />

material. Ninety percent of the crown<br />

preparation is accomplished with this<br />

one carbide. For the final finish, we<br />

switch to a KUT 3139 Coarse diamond<br />

(<strong>Dental</strong> Film Club; Montreal, Canada)<br />

(Fig. 6) to refine the axial walls and<br />

In Praise of Electric Handpieces53


a KUT 3833 Coarse diamond (<strong>Dental</strong><br />

Film Club) to shape the occlusal surface<br />

(Fig. 7). We then complete the<br />

final preparation, switching to fine<br />

diamonds and polishers.<br />

1. Removing old porcelain<br />

to metal crowns<br />

Many of our daily dental procedures<br />

involve removing older crowns that<br />

need replacement. Air-driven handpieces<br />

are very inefficient for this<br />

task, as the porcelain and underlying<br />

metal of the crowns are difficult<br />

to cut, which creates heat and causes<br />

the bur to stall. These procedures are<br />

very hard on the air turbines, causing<br />

them to wear prematurely and<br />

necessitating expensive replacement.<br />

Electric handpieces make removal of<br />

existing crowns a snap. We first create<br />

a groove in the porcelain using a KUT<br />

2135 Coarse diamond (<strong>Dental</strong> Film<br />

Club) (Fig. 8), which is ideal for grooving<br />

porcelain and zirconium. Once the<br />

underlying metal is exposed, we permeate<br />

it with a #557 carbide (SS White<br />

Burs) (Fig. 9), and pry the crown off<br />

with an EB134 hand instrument (Brasseler<br />

USA; Savannah, Ga.) (Fig. 10).<br />

This procedure becomes fast and<br />

efficient with an electric handpiece.<br />

2. Use as a slow-speed<br />

I used to continuously fight and be<br />

frustrated by my air-driven slowspeed.<br />

It would stall, making shaping<br />

and adjusting acrylic and metal very<br />

aggravating.<br />

Electric handpieces never stop. Problem<br />

resolved (Fig. 11).<br />

New technologies and techniques<br />

serve to make the practice of dentistry<br />

better, faster and easier. Although electric<br />

handpieces may be considered to<br />

be expensive by some dentists, their<br />

benefits in time and efficiency are well<br />

worth the investment. CM<br />

Dr. Elliot Mechanic practices esthetic dentistry in<br />

Montreal, Quebec. He is Oral Health’s editorial<br />

board member for esthetics.<br />

Reprinted with permission of Oral Health Journal,<br />

Copyright © July 2009, Oral Health Journal.<br />

Electric handpieces<br />

make removal of<br />

existing crowns a snap.<br />

Figure 6: Refining the axial walls with a KUT<br />

3139 Coarse diamond<br />

Figure 7: Final occlusal shaping with a KUT<br />

3833 Coarse diamond<br />

Figure 8: Creating a groove in the porcelain<br />

using a KUT 2135 Coarse diamond<br />

Figure 9: Permeating with a #557 carbide<br />

(SS White)<br />

Figure 10: Prying the crown off with an EB134<br />

hand instrument (Brasseler USA)<br />

Figure 11: Electric handpieces never stop<br />

(Bien-Air USA; Irvine, Calif.). Problem resolved.<br />

54 www.chairsidemagazine.com


THE REMAKE DEBATE<br />

– ARTICLE by Maribeth Marsico, Senior Editor at LMT Communications<br />

Mention “remakes” in a room full of laboratory owners and you know you’re in for a spirited discussion.<br />

It’s no wonder: not only do these cases-gone-wrong cut into your profits, but they can wreak havoc with<br />

your production schedule and erode the relationships you’ve built with your clients.<br />

Add to that the frustration expressed<br />

by technicians who feel the bulk of remakes<br />

are beyond their control; in fact,<br />

Lab Management Today (LMT) survey<br />

participants say more than three-quarters<br />

of remakes in their laboratories<br />

are due to dentist error. These laboratory<br />

owners and managers repeatedly<br />

say that — across all departments —<br />

most remakes can be traced back to<br />

an inadequate impression.<br />

Of course, the quality of the final<br />

impression is dependent on a number<br />

of variables, but what’s equally important<br />

is how cooperative the doctor is<br />

when problems are brought to his attention.<br />

While most of LMT’s survey<br />

respondents say dentists appreciate<br />

a call about inadequate impressions,<br />

they are divided on the most common<br />

outcome: 41 percent say the dentist<br />

generally sends a new impression and<br />

another 41 percent are usually told to<br />

“do the best they can.”<br />

To drive the point home and document<br />

potential problems, many laboratory<br />

owners are taking advantage of digital<br />

communication, saying a picture is<br />

worth a thousand words. “Providing<br />

dentists with photos of inadequate<br />

impressions enhances communication<br />

and eliminates the blame game,” says<br />

Jessica Birrell, CDT, Owner, Capture<br />

<strong>Dental</strong> Arts, Saratoga Springs, Utah,<br />

who annotates digital photos with<br />

captions and arrows using Photoshop<br />

software and e-mails them to the<br />

dentist. “Sometimes, I’ll also pour a<br />

stone model and send photos of that<br />

56 www.chairsidemagazine.com


to point out specific problems. If the<br />

doctor still wants me to go ahead and<br />

guess at margin placement, I let him<br />

know I cannot guarantee the success<br />

of the case.”<br />

CASES GONE WRONG: WHO’S AT FAULT?<br />

LMT survey participants say that more than three-quarters of the remakes<br />

in their laboratories are due to dentists’ errors, usually inadequate impressions.<br />

NO ONE-SIZE-FITS-ALL POLICY<br />

More than half of all laboratories don’t<br />

have a defined remake policy, saying<br />

that it depends on the specific case<br />

and sometimes on the specific dentistclient.<br />

“When a case is returned, we<br />

have to determine the reason and handle<br />

it accordingly,” says Ross Gaiteri,<br />

Owner, Benchmark Castings Inc., Columbus,<br />

Ohio. “If the lab is at fault,<br />

there’s no charge. If the fault clearly<br />

rests with the dentist, we charge 50<br />

percent. However, if the dentist is<br />

repeatedly at fault for remakes — or<br />

we’re told to proceed when we call<br />

with concerns about his impression or<br />

model — we charge him full price.”<br />

In an effort to eliminate the blame<br />

game altogether, 17 percent of participants<br />

routinely split the cost of remakes<br />

and one quarter of them don’t<br />

charge at all for remakes, at least<br />

until a certain remake percentage is<br />

exceeded. (See next page for a closer<br />

look at participants’ remake policies.)<br />

22%<br />

of remakes are<br />

due to lab error<br />

SOURCE: LMT Research Dept. ©2011<br />

78%<br />

of remakes are<br />

due to dentist error<br />

AVERAGE REMAKE FACTOR: 2.5%<br />

Survey participants’ overall average remake factor is 2.5%.<br />

Here’s a look at average remake percentages by department:<br />

C&B: 2.4% Dentures: 2.8% Implants: 2.2%<br />

Partials: 2.9% Ortho: 2.8%<br />

SOURCE: LMT Research Dept. ©2011<br />

To charge or not to charge is an issue<br />

that often divides laboratory owners.<br />

Some say laboratories shouldn’t routinely<br />

accept blame for cases that fail<br />

through no fault of their own. “If you<br />

don’t enforce a remake charge, it gives<br />

the dentist the impression that he can<br />

send you an inadequate impression<br />

or preparation at no risk to himself<br />

and, therefore, there’s no incentive to<br />

do a better prep or impression,” says<br />

Marc Posen, CDT, Owner, Posen <strong>Dental</strong><br />

Laboratory, Birmingham, Mich.<br />

On the other side are laboratory own-<br />

ers who perceive free remakes as one<br />

of the value-added benefits they offer<br />

their customers. In most cases, they<br />

say, the cost of doing the remake is<br />

negligible given the value of a good<br />

account. “I have only a few clients and<br />

very low remakes, so my philosophy is<br />

that doing the remakes at no charge is<br />

part of the service I’m offering them,”<br />

says Paul Francoeur, Owner, Rogue<br />

<strong>Dental</strong> Solutions Inc., Ormond Beach,<br />

Fla. “When we do have that rare problem<br />

with a case, we communicate and<br />

work together to solve it, and they<br />

appreciate that I will take care of<br />

remaking it.” Of course, this approach<br />

requires laboratories to carefully monitor<br />

clients’ remake percentages and<br />

immediately address any issues.<br />

The bottom line: whether you have a<br />

defined policy or not, keeping an eye<br />

on your clients’ individual remake factors<br />

and having honest conversations<br />

with them when things go awry is<br />

your best bet. “We know our mistakes<br />

cost dentists chairtime, just as their<br />

mistakes cost us labor, materials and<br />

transportation costs. But we’re making<br />

a custom product for sometimes chal-<br />

The Remake Debate57


lenging, difficult patients, and the<br />

partnership requires both parties to<br />

be reasonable in their expectations,”<br />

says Jim Thacker, Vice President, Utah<br />

Valley <strong>Dental</strong> Lab, Provo, Utah. “A<br />

flexible, relationship-driven approach<br />

builds trust and value for both the<br />

laboratory and dentist.” CM<br />

We’re making a custom product for sometimes challenging,<br />

difficult patients, and the partnership requires both parties<br />

to be reasonable in their expectations.<br />

– Jim Thacker<br />

Utah Valley <strong>Dental</strong> Lab, Provo, Utah<br />

Maribeth Marsico is the Senior Editor at LMT magazine, where she has been covering the dental laboratory industry for more than 20 years.<br />

For more information, visit www.lmtmag.com.<br />

Reprinted with permission from LMT, March 2011, ©2011.<br />

A LOOK AT LABORATORY<br />

REMAKE POLICIES<br />

More than half of the laboratory owners<br />

and managers participating in LMT’s<br />

Remake Survey say they don’t have a<br />

defined remake policy. Here’s a closer<br />

look at how respondents handle those<br />

cases gone wrong:<br />

51 %<br />

Say it depends on the situation<br />

with the individual case<br />

20 %<br />

Offer remakes at no fee<br />

17 %<br />

Split the cost of remakes with<br />

dentists<br />

2/3<br />

of<br />

THE IMPACT OF NEW TECHNOLOGY<br />

Is the proliferation of digital technology<br />

having an impact on the industry’s<br />

remake factor? One effect is clear:<br />

two-thirds of laboratories that receive<br />

digital impressions say they result in<br />

fewer remakes than do conventional<br />

impressions. “The software for these<br />

systems tends to ‘force’ dentists to provide<br />

accurate reduction, enabling us<br />

to fabricate more ideal restorations,”<br />

says Jim Thacker, Vice President, Utah<br />

Valley <strong>Dental</strong> Lab, Provo, Utah. “Models<br />

created from digital impression<br />

laboratory owners say digital<br />

impressions result in fewer remakes<br />

technology are extremely accurate<br />

and allow us to create more consistent,<br />

predictable restorations for our<br />

dentists.” Milling, too, has had a positive<br />

effect, although to a lesser extent.<br />

While the majority of participants —<br />

67 percent — say it hasn’t changed<br />

their overall remake percentage one<br />

way or another, one quarter of laboratories<br />

say milling has caused their<br />

overall C&B remake percentage to<br />

decrease due to more accurate fits.<br />

LMT ASKED: WHEN YOU REQUEST A NEW IMPRESSION,<br />

HOW OFTEN DO YOU GET ONE?<br />

7 %<br />

Say it depends on the individual<br />

client<br />

5 %<br />

Offer remakes at no fee until<br />

the dentist exceeds a certain<br />

remake percentage<br />

SOURCE: LMT Research Dept. ©2011<br />

44% Often<br />

27% Always<br />

25% Sometimes<br />

3% Almost Never<br />

SOURCE: LMT Research Dept. ©2011<br />

58 www.chairsidemagazine.com


Editor’s Note: Parke, Davis & Company, once the world’s largest pharmaceutical company, is credited with building the first modern pharmaceutical<br />

laboratory and developing the first systematic methods of performing clinical trials of new medications. One of the company’s products<br />

was a pure form of adrenaline, which emerged on the scene circa 1900 and was trademarked as “Adrenalin.” Because of the similarity of this<br />

name to “adrenaline,” the use of the alternative name “epinephrine” for generics was mandated in the U.S. and is used to this day.<br />

W<br />

ith<br />

a name like Adrenalin, it’s got to be good! Wait a minute, it’s a hemostatic<br />

and a cardiac stimulant? 1:1000? Is that all you’ve got? And it works for<br />

“spongy gums” and “other forms of capillary oozing”? Say no more! Except that<br />

it also works well as a heart tonic in “cases of collapse from chloroform or ether.”


Digital Impressions for an<br />

Immediate Denture<br />

– ARTICLE and CLINICAL PHOTOS by<br />

Dean H. Saiki, DDS<br />

The following case illustrates<br />

how digital impressions are not<br />

only superior to conventional<br />

impressions, but in some<br />

instances necessary.<br />

A 60-year-old male presented with<br />

severe periodontal disease, tooth loss,<br />

hyper-eruption and a collapsed bite<br />

(Fig. 1). The patient had both posterior<br />

and anterior stops; however, due to<br />

the extreme mobility of so many of<br />

the teeth in occlusion, an accurate<br />

bite with traditional bite registration<br />

material would have been difficult at<br />

best. Traditional immediate dentures<br />

require accurate models mounted in<br />

proper vertical dimension. Sometimes<br />

the placement of bite registration<br />

material in the presence of tooth<br />

mobility makes it difficult to check if<br />

the patient is biting correctly. There<br />

was also a high risk in this case that<br />

many of the patient’s remaining teeth<br />

would be inadvertently extracted when<br />

removing a conventional impression.<br />

Figure 1: The patient presented with severe periodontal disease,<br />

tooth loss, hyper-eruption and a collapsed bite.<br />

60 www.chairsidemagazine.com


One of the fears that kept the patient<br />

from seeing the dentist over the years<br />

was the “trapped” feeling of having an<br />

impression taken.<br />

Based on my experience with digital<br />

dentistry, I felt it would enable me to<br />

provide the perfect solution for this<br />

patient. By using the IOS FastScan ®<br />

Digital Impression System (IOS<br />

Technologies; San Diego, Calif.), I was<br />

able to save the patient the trauma<br />

of having a conventional impression<br />

taken, while reducing the inherent<br />

inaccuracy of this method and the risk<br />

of inadvertent extraction.<br />

Figure 2: Digital scan of the patient’s upper and lower arches<br />

(labial view)<br />

After scanning both arches and the<br />

palate, the scans were used to build<br />

the digital models and a bite scan<br />

was used to articulate the two models<br />

into occlusion (Figs. 2–4). The digital<br />

models were then uploaded to <strong>Glidewell</strong><br />

Laboratories.<br />

One of the fears that<br />

kept the patient from<br />

seeing the dentist<br />

over the years<br />

was the “trapped”<br />

feeling of having an<br />

impression taken.<br />

Figure 3: Digital scan of palate (occlusal view)<br />

Figure 4: Digital scan of mandibular arch (occlusal view)<br />

Digital Impressions for an Immediate Denture61


Once the digital files were received<br />

at <strong>Glidewell</strong> Laboratories, a physical<br />

model was created using an Objet ®<br />

3-D printer (Objet Geometries Ltd.;<br />

Billerica, Mass.) (Fig. 5). The physical<br />

models were then sent to <strong>Glidewell</strong>’s<br />

Removables department, where an immediate<br />

denture was fabricated.<br />

The denture was then sent back to my<br />

office. I was impressed with the fit and<br />

occlusion of the immediate denture,<br />

which needed no adjustments (Fig. 6).<br />

No adjustments were needed due to<br />

the degree of exactness with which<br />

we were able to capture the bite.<br />

By using the IOS FastScan, I was<br />

able to complete an impression<br />

without any material in the way, no<br />

overclosure and no risk of premature<br />

extraction. CM<br />

Figure 5: Objet 3-D dental model<br />

Dr. Dean Saiki is in private practice in North County<br />

San Diego, Calif., specializing in cosmetic, laser,<br />

implant and digital dentistry. Contact him at<br />

dentist@deansaiki.com or 760-732-3456.<br />

Figure 6: Finished immediate denture in place in patient’s mouth<br />

62 www.chairsidemagazine.com


Congratulations, Chairside ® PHOT<br />

A<br />

Hunt Winners!<br />

For each installment of the<br />

Chairside Photo Hunt, we<br />

have to dig pretty deep to<br />

keep everyone from finding<br />

every difference. This<br />

time, the most challenging<br />

to find were the ones<br />

on the lab cart against the<br />

textured concrete wall. The<br />

ones circled in green below<br />

tripped up the most people,<br />

separating the truly great<br />

from the merely excellent. I<br />

am tempted to check and<br />

see if the dentists who show<br />

the most attention to detail<br />

in this contest also send<br />

us the most accurate and<br />

detailed impressions!<br />

• First-place winners:<br />

23 dentists found all 21<br />

differences and will receive<br />

$500 in lab credit each.<br />

B<br />

• Second-place winners:<br />

30 dentists found 20 differences<br />

and will receive<br />

$100 in lab credit each.<br />

• Third-place winners:<br />

58 dentists found 19 differences<br />

and will receive<br />

$100 in lab credit each.<br />

Not sure what to use your<br />

lab credit for? Why not<br />

help your bruxing and<br />

clenching patients take a<br />

proactive step in protecting<br />

their existing healthy<br />

teeth by ordering a Comfort<br />

H/S Hard Soft Bite Splint<br />

or two? When you do, I<br />

think you will see why this<br />

clear custom splint is the<br />

most widely prescribed bite<br />

splint available, due to its<br />

comfort and fit.<br />

Chairside Photo Hunt Contest entries were individually<br />

scored after being sent to the lab via<br />

e-mail and standard mail. Prizewinners were<br />

notified by standard mail and/or phone. In total,<br />

111 prizes were awarded.<br />

Contest Results63


The Chairside® PHOT Hunt<br />

Once again, we’ve added clutter<br />

to the shot to give ourselves more<br />

hiding places! Here you see one of<br />

our technicians working at a CAD<br />

station. Thanks to IPS e.max ® and<br />

BruxZir ® Solid Zirconia, digital restorative<br />

dentistry continues to grow<br />

exponentially at our lab.<br />

A<br />

How many differences between the<br />

two pictures can you find? Circle<br />

the differences on version B below.<br />

Then, write down how many differences<br />

you found, tear out this page<br />

and send it to:<br />

<strong>Glidewell</strong> Laboratories<br />

Attn: Chairside magazine<br />

4141 MacArthur Blvd.<br />

Newport Beach, CA 92660<br />

Or scan your entry and e-mail it to<br />

chairside@glidewelldental.com<br />

Due to legibility issues, faxed entries<br />

will not be accepted. One<br />

entry per office. Participation grants<br />

Chairside magazine permission to<br />

print your name in a future issue or<br />

on its website.<br />

The winner of the Vol. 7, Issue 1,<br />

Chairside Photo Hunt Contest will<br />

receive $500 in <strong>Glidewell</strong> credit<br />

or a $500 credit toward his or her<br />

account. The second- and thirdplace<br />

winners will each receive<br />

$100 in <strong>Glidewell</strong> credit or a $100<br />

credit toward their account.<br />

B<br />

Entries must be received by<br />

April 6, 2012. The results will be<br />

announced in the spring issue of<br />

Chairside magazine.<br />

______________________________<br />

Name<br />

____________________________<br />

City, State of Practice<br />

____________________________<br />

Phone<br />

Total Found:________<br />

64 www.chairsidemagazine.com

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