Why the Owner of a Small Dental Practice Decided to Buy His Favorite Implant Line

Reading time: 7 minutes

Contributed by Dr Vincent Morgan, Jeffrey Lehrberg, and Kristina Pisarik of Bicon Dental Implants

We all have our favorite brands and products that we rely on; however, how many of us believe so strongly in a product that we are willing to dedicate our lives to it? This is the Bicon story.

The Shortest Implant with the Longest History

Dr Morgan’s implant journey began shortly after graduating from dental school in 1970 when he treated a young Irish girl who refused his treatment plan to fabricate two fixed bridges. She held out the hope that one day a dentist would be able to insert two prosthetic posts for her congenitally missing maxillary lateral incisors, but he advised her to abandon this wishful thinking and prepare for bridges instead.

Several weeks after his conversation with the young patient, the dentist with whom Dr Morgan shared his practice lost the last of his posterior maxillary teeth. If he had been a patient rather than a colleague, they would have extracted his remaining anterior teeth and fabricated a denture. However, since he was more than a patient, they decided to purchase two newly marketed Miter titanium blade implants. With no training of any sort and only common sense and logic as their guides, they successfully inserted the two blade implants into his posterior maxilla. Beginner’s luck being what it is, these blade implants remained functional some 20 years later.

Those two successful implants inspired Dr Morgan to become more involved with implant dentistry. His first experience with an implant designed by Thomas Driskell was in the mid-1970s with the Synthodont (Miter) implant. Dr Morgan would encounter another of Dr Driskell’s implants in 1992, and that implant would become the antecedent of all modern Bicon implants.

Thomas Driskell’s Discovery

Mr Driskell’s first PRF implant.

One of Mr Driskell’s early smooth implant designs with a very literal reproduction of the roots of a human molar.

In 1968, the conflict in Vietnam was beginning to escalate. As a result, Thomas Driskell and his team at the Battelle Memorial Institute in Columbus, Ohio, were tasked by the United States Army to develop a rapid and effective solution for replacing missing teeth in a combat or field situation. Driskell’s initial implant designs were smooth and closely mimicked the structure of mammalian teeth, but since they were not consistently successful, he began testing a variety of designs. He discovered that a bifurcated and grooved or finned design resulted in greater bone-to-implant contact than other designs—including screw-root form (SRF) implants. The finned design, referred to as plateau-root form (PRF), permitted occlusal loads to be transferred onto the bone that infiltrated the space between grooves.

After Battelle, Mr Driskell took his PRF implant design to Miter, where it became the Synthodont implant that Dr Morgan would later use. Mr Driskell revised his design further and created a submergible titanium implant with a removable abutment, the Titanodont (Miter). Subsequently, he formed a company called DB Bioengineering and received premarket notification for the DB Precision Fin Implant System in 1985. This implant had a PRF design, locking-taper implant-abutment interface, sloping shoulder, and—most importantly—no screws. Two years after its entry to the market, DB Bioengineering was sold to Stryker Corporation, and the implant was renamed the Stryker Precision Fin Implant.

The Synthodont, a freestanding, nonsubmergible implant made from high-density alumina.

The Titanodont, a submergible titanium implant with a removable abutment.

The DB Precision Fin implant, which later became the Stryker Precision Fin implant.

The Beginning and Future of Bicon

By 1992, Dr Morgan and his colleagues had placed over 2,500 SRF implants and had become frustrated with their inherent shortcomings. When they were introduced to the Stryker implant, it was a perfect fit. At last, they found what they were looking for—a design characterized by logic and simplicity. They soon became the most experienced clinicians using the Stryker implant; however, even they could not have predicted that 2 years later, in 1994, they would become the owners of the implant.

It all started when Dr Morgan attended a dinner meeting with Stryker’s product manager and discovered that he appeared to lack enthusiasm for the implant. At the advice of a patient who had been the CEO of a publicly traded company, Dr Morgan got into contact with Ron Ellenbass, one of Stryker’s presidents. Mr Ellenbass listened to his concerns and later complimented Dr Morgan for recognizing that the product manager was no longer enthusiastic about their implant. In fact, Stryker had decided to sell their implant line. He knew that whoever purchased it would have to work with Dr Morgan because he was their most knowledgeable user. After asking Mr Ellenbass to consider his patients while he would be cashing in his stock options, they politely ended their conversation. Subsequently, Mr Ellenbass called again and encouraged Dr Morgan to purchase the implant. As improbable as it seemed at the time, he did.

Fortunately, Dr Morgan had an attorney friend who provided the startup capital to purchase the implant. “We were dentists, not businessmen,” Dr Morgan explains. “But we knew firsthand the unmatched clinical capabilities and merits of Thomas Driskell’s implant. We knew the implant itself would make up for and overcome our inexperience and shortcomings, and it turns out that we were correct. We started as dabblers in implantology in a small dental practice; we are now an international medical device company in 90 countries.”

A selection of Bicon SHORT implants.

Despite the industry’s preference for screw-retained implants, Bicon continues to thrive with their PRF implants. A professor in Zurich recently greeted Dr Morgan by saying, “I know Bicon is a viable organization, for dead fish cannot swim against the stream. You have been going against the collective beliefs of the profession for decades, and now they are copying your ideas.”

When asked whether we are approaching the ceiling for innovation in implant dentistry, Dr Morgan has this to say: “History tends to mock those who make definitive statements regarding technology or innovation—there is always room for improvement and further innovation. That being said, the Bicon implant is the culmination of almost half a century of innovation and ingenuity. The Bicon implant is currently at a pinnacle; however, we have plans for it to be even better.”

One example of further innovation at Bicon is the implementation of milled telescopic copings used with TRINIA, a metal-free, fiber-reinforced resin material that is lightweight, flexible, durable, and readily modified. The combination of the TRINIA material with the retentiveness of the copings is providing revolutionary clinical treatments for both dentists and laboratory technicians and, most importantly, a stronger, more manageable denture for patients.

As for the future of Bicon and its implants, Dr Morgan says they will continue looking and moving in the best direction they know: forward.


Vincent J. Morgan, DMD, graduated from the Tufts University School of Dental Medicine in 1970. In 1994, he was part of a group that purchased the Bicon Implant System from Stryker Implants. He currently serves as president of Bicon, LLC and as honorary professor at Tver State Medical University in Tver, Russia. He also leads the prosthetic team at the Implant Dentistry Centre located at the Bicon headquarters in Boston, Massachusetts, where he is responsible in part for the development of many of the restorative techniques of the Bicon Dental Implant System.

 

The Bicon Short Implant: A Thirty-Year Perspective

Edited by Vincent Morgan

This book is a succinct and accessible compilation of over 30 years of knowledge concerning the Bicon system. It offers not only a history of dental implants and the science of osseointegration but also a vast collection of clinical examples that demonstrate Bicon’s capabilities. Bicon implants provide versatile, reliable treatment for a wide variety of clinical situations; they can successfully be placed in atrophic jaws, in sites that would require extensive bone grafting with longer implants, in tissue that has been compromised by medical conditions, and even in adolescent jaws that are still developing. With its proven track record of success, the Bicon system provides treatment opportunities for the benefit of clinicians, technicians, and patients by offering simple, predictable, and effective techniques. With everything from historical and theoretical origins to detailed step-by-step surgical and restorative guides, this book is a must-read for anyone interested in implantology.

336 pp; 1,800 illus; ©2017; ISBN 978-0-86715-728-4 (B7284); US $192

Posted in Books, Feature, Implant Dentistry, Prosthodontics, Restorative Dentistry | Tagged , , | Leave a comment

Hurricane Harvey Devastates Southeast Texas: How You Can Help

Reading time: 2 minutes

Rainfall from Hurricane Harvey as of Friday morning, August 25. (Source: the Houston Press.)

The Quintessence staff would like to extend our thoughts to all those affected by Hurricane Harvey.

Hurricane Harvey made landfall in southeast Texas as a Category 4 Hurricane in the early hours of the morning on Friday, August 25. Communities have been devastated by damage from high winds and flooding, and thousands of people have been displaced. Residents who evacuated may not be able to return until floodwaters have receded. Several people have lost their lives due to the storm, and many more are missing.

If you would like to help, donations can be made in many ways. The American Red Cross has mobilized disaster relief efforts in the area and accepts monetary donations online. Just select “Hurricane Harvey” in the drop-down menu under “I Want to Support.” If you are physically in the area, the South Texas Blood & Tissue Center is in dire need of blood donations. Visit their website for information on how and where you can donate. The Texas Diaper Bank is also collecting money and diapers to provide emergency diaper kits for families who have been displaced.

Our hearts go out to the members of the Quintessence family, both authors and readers, who have been affected by this disaster.

Posted in Misc | Leave a comment

Why the Owners of a Small Dental Practice Decided to Buy Their Favorite Implant Line

Reading time: 8 minutes

We all have our favorite brands and products that we rely on for quality and consistency. A clinician may gravitate toward certain implants for their designs, the biocompatibility of their materials, or their applicability to a number of clinical situations. We develop confidence in products we trust. But how many of us believe so strongly in a product that we are willing to forego the comfort of simply being a consumer and take on the risk of being its owner? What journey inspires that decision, and what unique qualities must the product have to inspire such dedication? This is the Bicon story.

The Shortest Implant with the Longest History

When Vincent Morgan first began working with dental implants, he was frustrated by their shortcomings.

“My journey began shortly after graduating from dental school in 1970,” he recalls, “when I treated a young Irish girl. She held out the hope that one day a dentist would be able to insert two posts into her jaw to support prosthetic teeth for her congenitally missing maxillary lateral incisors. At the time, I considered this hope foolish and advised her to abandon it and prepare for bridges instead.

“Several weeks after my conversation with that young lady, the dentist with whom I shared my practice lost the last of his posterior maxillary teeth. If he had been a patient rather than a colleague, we would have advised the extraction of his remaining anterior teeth and the fabrication of a denture. However, since he was more than a patient, we decided to purchase two newly marketed Miter titanium blade implants. With no training of any sort and only common sense and logic as our guides, we successfully inserted the two blade implants into his posterior maxilla. Beginner’s luck being what it is, these blade implants were still functional some 20 years later.”

It is far more reasonable to take treatment risks with a knowledgeable colleague than a patient, and those two successful implants inspired Dr Morgan and his colleague to become more involved with implant dentistry. Their first experience with an implant designed by Thomas Driskell came in the mid-1970s with his Synthodont implant system (Miter); their paths would converge again in 1992 after Mr Driskell created the implant that would become the antecedent of all modern Bicon implants.

Thomas Driskell’s Discovery

Mr Driskell’s first PRF implant.

One of Mr Driskell’s early smooth implant designs with a very literal reproduction of the roots of a human molar.

In 1968, the conflict in Vietnam was beginning to escalate. As a result, Thomas Driskell and his team at the Battelle Memorial Institute in Columbus, Ohio, were tasked by the United States Army to develop a rapid and effective solution for replacing missing teeth in a combat or field situation. Driskell’s initial implant designs were smooth and closely mimicked the structure of mammalian teeth, but since they were not consistently successful, he began testing a variety of designs. By testing each design, he discovered that a bifurcated and grooved or finned design resulted in greater bone-to-implant contact than other designs—including screw-root form (SRF) implants. The finned design, referred to as plateau-root form (PRF), permitted occlusal loads to be transferred onto the bone that infiltrated the space between grooves.

After Battelle, Mr Driskell took his PRF implant design to Miter, where it became the Synthodont implant that Dr Morgan would later use in his dental practice. Mr Driskell revised his design further and created a submergible titanium implant with a removable abutment, the Titanodont (Miter). He and his partners then formed a company called DB Bioengineering, and in 1985, they received premarket notification for the DB Precision Fin Implant System. This implant had a PRF design, locking-taper implant-abutment interface, sloping shoulder, short overall length, and—most importantly—no screws. Two years after its entry to the market, DB Bioengineering was sold to Stryker Corporation, and their implant was renamed the Stryker Precision Fin Implant. Soon after, it found its way to Dr Morgan’s clinic.

The Synthodont (Miter), a freestanding, nonsubmergible implant made from high-density alumina.

The Titanodont (Miter), a submergible titanium implant with a removable abutment.

The DB Precision Fin implant (DB Bioengineering), which later became the Stryker Precision Fin implant.

 

 

 

 

 

 

 

 

 

 

The Beginning and Future of Bicon

By 1992, Dr Morgan and his colleagues had placed over 2,500 SRF implants and had become frustrated with their inherent shortcomings. When they were introduced to the Stryker implant, it was a perfect fit.

“At last,” Dr Morgan recalls, “we had found what we were looking for—a design characterized by logic and simplicity.”

Dr Morgan and his colleagues quickly became the dental practice with the most experience using the Stryker implant. However, even they could not predict that 2 years later, in 1994, the fate of the implant would fall into their hands.

“It all started at a dinner meeting with Stryker’s product manager. He appeared to lack enthusiasm for the implant, which greatly concerned me. I got into contact with one of Stryker’s presidents, Ron Ellenbass. He listened to my concerns without commenting. Within a fortnight he called again and complimented me for recognizing that the product manager was no longer enthusiastic about their implant. In fact, Stryker had just decided to sell their implant line. He knew that whoever purchased it would have to work with us because we were their most knowledgeable users, but it was clear he did not consider us a potential purchaser. After asking Mr Ellenbass to think of our patients while he cashed in his stock options, we politely ended our conversation. Not 2 weeks later he called again and encouraged us to purchase the implant. And, as improbable as it seemed at the time, we did.”

Fortunately, Dr Morgan and his colleague were able to find an investor to provide the startup capital to purchase the implant. Their story mimics the classic plot of small-time consumers banding together to take over a company. In Dr Morgan’s case, the decision to buy the Stryker implant was both economically and ideologically motivated. Why should it fall to him and his clinic to educate the new purchaser while others reaped the financial benefits? But, more importantly, how would this unstable chain of ownership—being passed from disinterested to inexperienced hands—affect the implant’s future? Would the new owner’s support for the implant dwindle the way Stryker’s did, or would they believe in its future the way Dr Morgan did? The risk Dr Morgan could not afford to take was allowing the implant to fail. He could not afford to lose a life-changing treatment option for his patients.

“We were dentists, not businessmen,” Dr Morgan explains. “But we knew firsthand the unmatched clinical capabilities and merits of Thomas Driskell’s implant. We knew the implant itself would make up for and overcome our inexperience and shortcomings, and it turns out that we were correct. We started as dabblers in implantology in a small dental practice; we are now an international medical device company in 90 countries.”

A selection of Bicon SHORT implants.

Despite the industry’s preference for screw-retained implants, Bicon continues to thrive with their PRF implants. A professor in Zurich once greeted Dr Morgan by saying, “I know Bicon is a viable organization, for dead fish cannot swim against the stream. You have been going against the collective beliefs of the profession for decades, and now they are copying your ideas.”

When asked whether we are approaching the ceiling for innovation in implant dentistry, Dr Morgan has this to say: “As long as an implant performs as well as current Bicon implants, there is no reason why we should be afraid of going shorter. History tends to mock those who make definitive statements regarding technology or innovation—there is always room for improvement and innovation. That being said, the Bicon implant is the culmination of almost half a century of innovation and ingenuity; if we have indeed reached the peak of innovation, then the Bicon implant would certainly be at the pinnacle.”

As for the future of Bicon and its PRF implants, Dr Morgan says they will continue looking and moving in the best direction they know: forward.


Vincent J. Morgan, DMD, graduated from the Tufts University School of Dental Medicine in 1970. In 1994, he was part of a group that purchased the Bicon Implant System from Stryker Implants. He currently serves as president of Bicon, LLC. He also leads the prosthetic team at the Implant Dentistry Centre located at the Bicon headquarters in Boston, Massachusetts, where he is responsible in part for the development of many of the restorative techniques of the Bicon Dental Implant System.

 

The Bicon Short Implant: A Thirty-Year Perspective

Edited by Vincent Morgan

This book is a succinct and accessible compilation of over 30 years of knowledge concerning the Bicon system. It offers not only a history of dental implants and the science of osseointegration but also a vast collection of clinical examples that demonstrate Bicon’s capabilities. Bicon implants provide versatile, reliable treatment for a wide variety of clinical situations; they can successfully be placed in atrophic jaws, in sites that would require extensive bone grafting with longer implants, in tissue that has been compromised by medical conditions, and even in adolescent jaws that are still developing. With its proven track record of success, the Bicon system provides treatment opportunities for the benefit of clinicians, technicians, and patients by offering simple, predictable, and effective techniques. With everything from historical and theoretical origins to detailed step-by-step surgical and restorative guides, this book is a must-read for anyone interested in implantology.

336 pp; 1,800 illus; ©2017; ISBN 978-0-86715-728-4 (B7284); US $192

 

Posted in Books, Dental Technology, Feature, Implant Dentistry, Misc, Oral and Maxillofacial Surgery, Research, What's New | Tagged , , , , , | Leave a comment

Quintessence Roundup: August

Reading time: 8 minutes

Quintessence 2017 Catalog

Monthly Special


Seltzer and Bender’s Dental Pulp, Second Edition

Edited by Kenneth M. Hargreaves, Harold E. Goodis, and Franklin R. Tay

This comprehensive update of a classic text presents the latest research on the dental pulp and its interaction with other tissues, highlighting its central role in both local and systemic health. The second edition has been completely revised to incorporate new chapters featuring the most topical issues in research and clinical practice, including developments in stem cell research and pulpodentin regeneration, the effects of the aging process on the pulp, and the interdependent relationship of the pulp and restorative dental procedures. New contributors bring fresh perspective to topics such as pulpal infections, odontalgia, and the relationship between the pulp and periodontal disease. Each chapter provides an introduction to its major themes for the busy clinician or dental student as well as up-to-date, biologically based clinical recommendations for restorative and endodontic procedures. Practicing clinicians will find this information to be essential to providing accurate diagnoses and effective treatment.

512 pp; 707 illus; ©2012; ISBN 978-0-86715-480-1 (B4801); Special price! $75

New Titles in Books


Oral Pathology in Clinical Dental Practice

Robert E. Marx

While most dentists do not perform their own histologic testing, all dentists must be able to recognize conditions that may require biopsy or further treatment outside the dentist office. This book does not pretend to be an exhaustive resource on oral pathology; instead, it seeks to provide the practicing clinician with enough information to help identify or at least narrow down the differential for every common lesion or oral manifestation of disease seen in daily practice as well as what to do about them. Organized by type of lesion, mass, or disease, each pathologic entity presented includes the nature of the disease; its predilections, clinical features, radiographic presentation, differential diagnosis, and microscopic features; and the suggested course of action for the dental practitioner as well as the standard treatment regimen. In keeping with the concise nature of the text, all but the rarest disease entities include at least one photograph to illustrate the clinical condition. This book distills the comprehensive information from Dr Marx and Dr Diane Stern’s award-winning pathology reference text (Oral and Maxillofacial Pathology: A Rationale for Diagnosis and Treatment, ed 2 [Quintessence, 2012]) into practical guidelines for restorative and general dentists everywhere.

376 pp; 425 illus; ISBN 978-0-86715-764-2 (B7642); Special preorder price! $78

 

Anesthesia Considerations for the Oral and Maxillofacial Surgeon

Edited by Matthew Mizukawa, Samuel J. McKenna, and Luis G. Vega

Although office-based anesthesia administration has been essential in the evolution of outpatient surgery, it is becoming more complex as people live longer and with more comorbid diseases. The purpose of this book is to strengthen the margin of safety of office-based anesthesia administration by helping practitioners determine whether the patients they treat are good candidates for office-based anesthesia. This book is organized into three sections. The first section provides a review of the principles of anesthesia, including the pharmacology of anesthetic agents, local anesthesia, patient monitoring, preoperative evaluation, the airway, and management of emergencies and complications. The major organ systems of the body are reviewed in section two, and the most common comorbid conditions that affect these systems are described in terms of their pathophysiology, diagnosis, management, and anesthesia-related considerations. Section three reviews patient groups that warrant special consideration in the administration of office-based anesthesia, such as geriatric, pediatric, pregnant, and obese patients. Spiral-bound and featuring tabs for quick and easy reference, this important book belongs on the shelf of every clinician who provides anesthesia in the office setting.

482 pp; 101 illus; ISBN 978-0- 86715-713- 0 (B7130); Special preorder price! $134

 

Color in Dentistry:
A Clinical Guide to Predictable Esthetics

Stephen J. Chu, Rade D. Paravina, Irena Sailer, and Adam J. Mieleszko

Predictable shade matching in dentistry remains a significant challenge for clinicians in daily practice. Color is an important aspect in the esthetics of teeth and dental restoration fabrication, and color discrepancy can mar restorative results, even when other aspects (marginal fit, occlusion, and morphology) are adequate. This book provides step-by-step protocols to help dental professionals accurately match, communicate, and reproduce the color of teeth and gingiva. These authors demonstrate how to implement color science in simple problem-solving instructions for predictable esthetics in both clinical protocols and laboratory techniques. An extensive presentation of clinical cases is included to illustrate the use of recommended protocols in general practice. An outstanding contribution to the practice and theory of color management in contemporary dentistry.

256 pp; 890 illus; ISBN 978-0-86715-745-1 (B7451); Now available! US $108

Current Challenges in Color

 

The Bicon Short Implant: A Thirty-Year Perspective

Edited by Vincent Morgan

This book is a succinct and accessible compilation of over 30 years of knowledge concerning the Bicon system. It offers not only a history of dental implants and the science of osseointegration but also a vast collection of clinical examples that demonstrate Bicon’s capabilities. Bicon implants provide versatile, reliable treatment for a wide variety of clinical situations; they can successfully be placed in atrophic jaws, in sites that would require extensive bone grafting with longer implants, in tissue that has been compromised by medical conditions, and even in adolescent jaws that are still developing. With its proven track record of success, the Bicon system provides treatment opportunities for the benefit of clinicians, technicians, and patients by offering simple, predictable, and effective techniques. With everything from historical and theoretical origins to detailed step-by-step surgical and restorative guides, this book is a must-read for anyone interested in implantology.

336 pp; 1,800 illus; ISBN 978-0-86715-728-4 (B7284); Now available! US $192

 

ITI Treatment Guide Series
Volume 10: Implant Therapy in the Esthetic Zone: Current Treatment Modalities and Materials for Single-Tooth Replacements

Edited by Vivianne Chappuis and William Martin

This latest volume in the ITI Treatment Guide series starts out with the most recent statements and recommendations from the 5th ITI Consensus Conference, followed by a detailed protocol for the evaluation and treatment planning of patients with esthetic demands requiring single-tooth replacement with a dental implant. Various surgical situations commonly encountered in the esthetic zone are presented along with recommended treatment protocols. In addition, the many aspects of clinical management of the planned implant site (before and after placement) are discussed including the use of provisional prostheses, laboratory communication, abutment design, restorative material selection, and delivery of the definitive restoration. Fourteen complex case presentations form the core of this volume with step-by-step descriptions of procedures for achieving stable long-term esthetic outcomes. This volume provides a comprehensive, evidence-based approach to single-tooth replacement in the esthetic zone, from consultation to follow-up, with a focus on current treatment modalities and the materials that present-day implant dentistry has to offer in order to support clinicians in their decision-making processes.

444 pp; 1,386 illus; ISBN 978-3-86867-343-2 (B9097); US $98

 

Stability, Retention, and Relapse in Orthodontics

Christos Katsaros and Theodore Eliades

This book offers a thorough analysis of the retention and stability of orthodontic treatment results and outlines the keys to effective intervention. Tendencies for stability and relapse of orthodontic treatment are covered for incisor irregularity and Class I, Class II, transverse, and vertical problems, as well as orthognathic surgery outcomes. In addition to cautioning against tooth and jaw movements that have been associated with an increased risk of relapse, the authors discuss the use of fixed and removable retention appliances and outline treatment principles to minimize relapse and the development of potential unwanted effects at the retention stage. The end result is an understanding of how to develop targeted retention plans for individual patients and how to treatment plan long-term stability with strategic insight.

226 pp; 403 illus; ISBN 978-1-78698-019-9 (B9100); US $128

New Issues in Journals


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Featured article: Interpositional Augmentation Technique in the Treatment of Posterior Mandibular Atrophies: A Retrospective Study Comparing 129 Autogenous and Heterologous Bone Blocks with 2 to 7 Years Follow-Up
Pietro Felice, Carlo Barausse, Antonio Barone, Giovanni Zucchelli, Maurizio Piattelli, Roberto Pistilli, Daniela Rita Ippolito, and Massimo Simion

Human Histologic Evidence of Reosseointegration Around an Implant Affected with Peri-implantitis Following Decontamination with Sterile Saline and Antiseptics: A Case History Report
Paul Fletcher, Daniel Deluiz, Eduardo M.B. Tinoco, John L. Ricci, Dennis P. Tarnow, and Justine Monnerat Tinoco

Combining Esthetic Layering and Lithium Disilicate Sintering Technique on Zirconia Frameworks: A Veneering Option to Prevent Ceramic Chipping
Reza Saeidi Pour, Daniel Edelhoff, Caroline Freitas Rafael, Otto Prandtner, Stefan Frei, Claudia Angela Maziero Volpato, and Anja Liebermann

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Economic Evaluation of Implant-Supported Overdentures in Edentulous Patients: A Systematic Review
Qi Zhang, Xin Jin, Mengliu Yu, Guoming Ou, Hiroyuki Matsui, and Xing Liang

Preliminary Clinical Application of Removable Partial Denture Frameworks Fabricated Using Computer-Aided Design and Rapid Prototyping Techniques
Hongqiang Ye, Jing Ning, Man Li, Li Niu, Jian Yang, Yuchun Sun, and Yongsheng Zhou

Reliability of a CAD/CAM Surgical Guide for Implant Placement: An In Vitro Comparison of Surgeons’ Experience Levels and Implant Sites
Su-Jung Park, Richard Leesungbok, Taixing Cui, Suk Won Lee, and Su-Jin Ahn

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Clinical Performance of Dental Implants with a Moderately Rough (TiUnite) Surface: A Meta-Analysis of Prospective Clinical Studies
Matthias Karl and Tomas Albrektsson

Thematic Abstract Review: Implantoplasty: A Valuable Method for the Management of Peri-implantitis?
Jan-Eirik Ellingsen

Local Application of Growth Hormone to Enhance Osseointegration in Osteoporotic Bones: A Morphometric and Densitometric Study
Elena Martin-Monge, Isabel F. Tresguerres, Celia Clemente, and Jesús A. F. Tresguerres

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What Can Epigenetics Tell Us About Periodontitis?
Pamela Leong, Yuk Jing Loke, and Jeffrey M. Craig

Does Use of Alcohol-Containing Mouthrinse Increase Risk for Oral Cancer?
Ann Eshenaur Spolarich

Gingival Trauma: Tooth Brushing and Oral Piercings
Nienke L. Hennequin-Hoenderdos, Fridus A. van der Weijden, and Dagmar E. Slot

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A Retrospective Study on Possible Predictive Factors for Long-term Temporomandibular Joint Degeneration and Impaired Mobility in Juvenile Arthritis Patients
Stanimira I. Kalaykova, Adriaan T. Klitsie, Corine M. Visscher, Machiel Naeije, and Frank Lobbezoo

Prevalence of Temporomandibular Disorders in the Northern Finland Birth Cohort 1966
Päivi Jussila, Heikki Kiviahde, Ritva Näpänkangas, Jari Päkkilä, Paula Pesonen, Kirsi Sipilä, Pertti Pirttiniemi, and Aune Raustia

A Rare Case of Misdiagnosed Silent Lung Cancer with Solitary Metastasis to the Temporomandibular Joint Condyle
Luca Guarda-Nardini, Edoardo Stellini, Adolfo Di Fiore, and Daniele Manfredini

Dental Meetings Quintessence Will Attend in August


ICOI World Congress: Booth #109
hosted by the International Congress of Oral Implantologists, August 17–19 in Vancouver, Canada

Seminario XXII: Booth #E3
hosted by Ivoclar Vivadent México, August 18–18 in Mexico City, Mexico

CDA Presents the Art and Science of Dentistry: Booth #612
hosted by the California Dental Association, August 24–26 in San Francisco, CA

Posted in Books, Dental Technology, Endodontics, Esthetic Dentistry, Implant Dentistry, International Journal of Evidence-Based Practice for the Dental Hygienist, Journal of Oral & Facial Pain and Headache, Journals, Multidisciplinary, Oral and Maxillofacial Surgery, Orthodontics, Pediatric Dentistry, Periodontics, Promotions, Prosthodontics, Research, Restorative Dentistry, Roundup, Special Offer, The International Journal of Oral & Maxillofacial Implants, The International Journal of Periodontics & Restorative Dentistry, The International Journal of Prosthodontics, What's New | Tagged , , , , , , , , , , , , , , , , , , , , , | Leave a comment

Current Challenges in Color

Reading time: 9 minutes

Picture the scene: A new patient has been referred to your office for an esthetic treatment consultation. The patient’s mouth is an Easter egg basket of assorted colors and issues: some veneers here, an implant there, a post and core–treated tooth next to that, and a few missing papillae sprinkled—or not sprinkled—on top. None of it matches, and the patient understandably desires a more cohesive esthetic appearance. Enter you. How do you proceed?

If you’ve ever watched a home-remodeling television show, you know the first step is usually to tear everything out but the walls and roof in order to start fresh and work toward a beautiful, modern end result. Unfortunately, the human mouth is not quite as resilient. Patients often show up with a guestbook in their mouth signed by every dentist they’ve ever visited, and even the most advanced technician can have trouble matching color between different materials and thicknesses. Drs Stephen J. Chu, Rade D. Paravina, and Irena Sailer and master ceramist Adam J. Mieleszko confront these issues and more in their new book, Color in Dentistry: A Clinical Guide to Predictable Esthetics.

Color Matching with Discolored Substrates

One case described in the book involves the replacement of three crowns on nonvital anterior maxillary teeth previously treated with metal post-and-core buildups. The stumps were significantly discolored due to the large posts and translucent restoration materials.

“In a specific situation like this,” Dr Sailer explains, “the old post-and-core buildups were not removed because there was a risk of catastrophic root fracture upon removal and no indication to renew the endodontic treatment. Current material options made it possible to mask the metallic substructure and achieve an esthetic result.”

The old crowns were removed and displayed big metal posts that led to a strong discoloration of the composite cores. The team discussed removing the post-and-core buildups but decided not to do so because of the high risk for fracture of the roots. Because the patient was financially limited, the team offered him less costly monolithic chairside restorations based on a resin-based hybrid material (Lava Ultimate, 3M ESPE). Unfortunately, the raw and unpolished “biscuit try-in” of the monolithic crowns were not esthetic at all, and it became clear that even using a stain and glaze kit offered by the manufacturer, the desired esthetic outcome would not be reached. After discussing this esthetic limitation with the patient, he agreed to the extra cost for a small cutback and buccal veneering of the crowns to better match the natural reference tooth. (Case rehabilitation performed in collaboration with Vincent Fehmer, MDT.)

In this and similar cases, clinicians can often modify the treatment in order to achieve successful esthetic results using white resin, ceramic, and glass-ceramic materials. But what about cases where the discoloration is too strong to be masked with such translucent materials?

In the book, the authors describe a case involving the replacement of crowns on both of the patient’s maxillary central incisors where the left was nonvital and discolored and the right was vital and nondiscolored. Complicating the treatment planning and material selection was the patient’s insistence on all-ceramic restorations rather than metal-ceramic—the two original 20- to 30-year-old metal-ceramic crowns were opaque and not natural-looking, not to mention unsuccessful at masking the cervical discoloration of the tooth root. However, even after placing opaque zirconia frameworks, the technician was not able to fully mask the discolored left central incisor. Luckily, the technician had also made a pair of metal-ceramic crowns that the team compared at try-in, and the patient ended up agreeing with the team that the metal-ceramic crowns were better after all. The metal-ceramic crowns allowed the technician to start with the same gray framework color on both teeth, while also allowing for a thinner framework with a stronger value of opacity and larger ceramic shoulders to better reflect the veneering ceramic.

In this case, metal-ceramic crowns allowed the technician to start from the same gray framework color on both crowns, whereas zirconia frameworks failed to adequately mask the stump discoloration. (Case rehabilitation performed in collaboration with Walter Gebhardt, DT.)

Restoring Esthetics Using Pink Restorative Materials

Patients’ teeth are not the only reason they may be displeased with previous dental treatment. One of the newest and most exciting mediums of esthetic dentistry is the use of pink restorative materials, which is opening up a new range of treatment possibilities for soft tissue defects. Previously, the standard options for missing papillae were surgical soft tissue augmentation or forced orthodontic eruption. These options are time-consuming and costly and in some cases may not be possible or recommended due to unmet biologic parameters. Advances in both materials and techniques are making the use of pink restorative materials a reliable solution.

“Pink restorative materials can be used in patient situations where there are contraindications for surgery or when the patient simply does not want surgery,” Dr Sailer, who has used pink restorative materials in her practice for over a decade, explains. “They can also be done in complicated clinical situations with huge vertical and horizontal defects. The ceramic is smooth and polished at the surface—exactly like tooth-colored veneering ceramic. We design the pink porcelain to be cleanable and instruct patients on how to perform oral hygiene around reconstructions.” Pink restorative materials can also be used to restore missing papillae, which are especially common after single-implant therapy.

In a case where the patient presented with multiple adjacent implants placed from maxillary right canine to left central incisor and with inverted tooth axes, insufficient overjet and overbite, a reverse smile line, and lack of interproximal papillae, the presenting restorations “possessed all the dilemmas associated with not using pink restorative materials and only using white ceramics to compensate for esthetic deficiencies,” according to the authors. A treatment plan was devised that included ceramic veneers on the right second premolar and left first premolar, single crowns on the right first premolar and left lateral incisor, and an all-ceramic fixed dental prosthesis for the right canine to left central incisor. Importantly, pink restorative material was included on all but the two veneers. This tapered approach allowed the team to redefine the patient’s entire smile in a way that without the use of pink restorative materials would have required more invasive procedures such as orthognathic surgery.

Putting Everything Together

A final example involves matching dissimilar restoration and material types with pink ceramics. The patient, a 28-year-old woman, presented with multiple congenitally missing maxillary teeth (right canine and left lateral incisor), an impacted maxillary left canine, and existing composite direct veneer restorations on the maxillary right first premolar to central incisor and left primary lateral incisor to first premolar placed more than two decades ago. Several esthetic issues were present, including a canted transverse plane with lack of maxillary incisal tooth exposure. The maxillary restorative arch form was constricted due to the lack of intra-arch width development without the eruption of the permanent dentition, and previous composite bonding of the maxillary right first premolar to the left first premolar was disharmonious.

During the “tear-out” phase of this oral renovation, the old composite restorations were removed. The team also extracted the primary left lateral incisor and the impacted canine. The right incisors required esthetic crown lengthening to restore the proper length relative to width. The definitive restorations included preparationless veneers on the second premolars, metal-ceramic implant restorations on the right canine and left lateral incisor and canine, single metal-ceramic full-coverage crowns on the first premolars, and extended all-ceramic layered feldspathic veneer restorations on the right incisors and left central incisor.

This case involved esthetic integration with regard to individual tooth proportion, arch form, and color matching between dissimilar materials (metal-ceramics vs all-ceramics) and restoration types (full-coverage crowns versus veneers). Pink-colored ceramics replaced the height of the lost interproximal papilla between the left lateral incisor and canine. The definitive restorations also blended with the patient’s mandibular dentition, on which she had performed minor vital bleaching. The end result is a harmonious, well-proportioned smile with improved function that, most importantly, the patient was very happy with.

A Guide to Success

Many restorative dentists and laboratory technicians can fabricate a beautiful restoration in an ideal clinical situation. However, successful esthetic results are much more elusive when the patient has soft tissue defects or when the case involves previous nonesthetic restorations. Color in Dentistry: A Clinical Guide to Predictable Esthetics guides clinicians through that renovation process and provides insight on all things color. You may not be the last entry in your patient’s dental guestbook, but with results like these you can be the most memorable and effective.


Stephen J. Chu, DDS, MSD, CDT, MDT, is an associate clinical professor in the Ashman Department of Periodontology and Implant Dentistry and the Department of Prosthodontics as well as the director of esthetic education at the New York University College of Dentistry. He has published more than 40 articles and given lectures nationally and internationally on the subjects of esthetic, restorative, and implant dentistry. Dr Chu is a coauthor of the book Fundamentals of Color: Shade Matching and Communication in Esthetic Dentistry, Second Edition (Quintessence, 2011) and is on the editorial review board of several peer-reviewed dental journals. He is the recipient of the Peter Scharer Distinguished Lecturer Award from the European Academy of Esthetic Dentistry and the Lloyd L. Miller Distinguished Lecturer Award from the Society for Color and Appearance in Dentistry. Dr Chu maintains a private practice limited to fixed prosthodontics, esthetic dentistry, and implant dentistry in New York City.

Rade D. Paravina, DDS, MS, PhD, is a tenured Professor at the University of Texas School of Dentistry at Houston and Director of the Houston Center for Biomaterials and Biomimetics. He is founder and past president of the Society for Color and Appearance in Dentistry (SCAD) and received the 2011 E. B. Clark Award from SCAD in 2011. He is the 2014 recipient of the Jerome M. and Dorothy Schweitzer Research Award of the Greater New York Academy of Prosthodontics. Dr Paravina is a fellow of the American Academy of Esthetic Dentistry, the American Association for Dental Research, and SCAD. Dr Paravina coauthored Fundamentals of Color: Shade Matching and Communication in Esthetic Dentistry, Second Edition (Quintessence, 2011) and Esthetic Color Training in Dentistry (Elsevier, 2004) and has contributed to 15 book chapters, 2 software programs, 1 educational CD, and more than 220 peer-reviewed publications. He serves as associate editor of the Journal of Esthetic and Restorative Dentistry and editorial review board member of several other peer-reviewed dental journals. Dr Paravina lectures nationally and internationally on various topics associated with color and appearance in esthetic dentistry.

Irena Sailer, Prof Dr med dent, is professor and chair of the Division of Fixed Prosthodontics and Biomaterials at the University of Geneva in Switzerland. She has served as a visiting scholar in the Department of Biomaterials and Biomimetics of the New York University College of Dentistry and currently holds an adjunct associate professorship of restorative dentistry at the University of Pennsylvania School of Dental Medicine. Dr Sailer is certified as a specialist in prosthodontics by the Swiss Society for Reconstructive Dentistry and in dental implantology by the Swiss Society for Dentistry.

Adam J. Mieleszko, CDT, graduated in 1997 from New York City Technical College with a degree in dental laboratory technology and received certification in dental ceramics in 2000. Since then he has worked in close collaboration with leading prosthodontists in the field. Mr Mieleszko is a coauthor of the book Fundamentals of Color: Shade Matching and Communication in Esthetic Dentistry, Second Edition (Quintessence, 2011) and has contributed to numerous clinical and technical articles in industry journals. He is a master ceramist based in New York City.

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