Academy of Operative Dentistry Scientific Session

 


 Thursday, February 23rd


 

8:00-9:00am

"Bioactive Dental Materials... What's up with that?" 

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Jack L. Ferracane, PhD
Professor and Chair, Department of Restorative Dentistry, OHSU School of Dentistry

Synopsis: The word “bioactive” is becoming widespread to describe materials used in various aspects of oral healthcare. The definition of “bioactive” is a subject of debate, with some arguing that materials should have a direct effect on a biological system, as opposed to toxic or chemical effect. This presentation will describe the different views of “bioactivity” and provide examples of how this interesting and important concept is being pursued in dentistry. 

Learning Objectives: 
1. Describe the different interpretations of what “bioactivity” means for dental biomaterials.
2. Explain the mechanism of action of materials that claim “bioactivity” for the purpose of in situ mineral formation.
3. Explain the mechanism of action of materials that claim “bioactivity” for the purpose of affecting microorganisms to inhibit caries or mitigate inflammatory processes.
4. Identify a useful working definition for “bioactivity” as it relates to dental biomaterials. 

About the Speaker:
Jack Ferracane is Professor and Chair of Restorative Dentistry at Oregon Health & Science University, Portland, Oregon. He received a B.S. in Biology from the University of Illinois, and an M.S. and Ph.D. in Biological Materials from Northwestern University. He is a past-President of the American Association for Dental Research and the Academy of Dental Materials. He is the recipient of the IADR Distinguished Scientist Wilmer Souder Award, the Academy of Dental Materials Founders Award, and the Hollenback Award from the Academy of Operative Dentistry. He is an honorary member of the American College of Dentists and the Oregon Dental Association. He is Editor-in-chief of a new journal published by the ADA and Elsevier entitled, JADA Foundational Science. He has authored or co-authored three textbooks on dental materials and operative dentistry. He has published and lectured extensively on dental materials, including dental composites, adhesives, amalgams, “bioactive materials”, and practice-based dental research. 


 

9:00-10:00am

"Demystifying Digital Dentures: Current Trends & Scientific Update "

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Despoina Bompolaki, DDS, MS, FACP 
Associate Professor and Clinical Director, Department of Restorative Dentistry, OHSU School of Dentistry 

Synopsis: In the last decade, digital dentures have captured increasing attention by both restorative dentists and dental laboratory technicians. New products and workflows are constantly being introduced, while many clinicians are still unsure whether digital dentures are the right choice for their practice. This presentation will answer some common questions related to digital dentures, with emphasis on the best available scientific evidence. 

Learning Objectives: 
At the end of this presentation, attendees should be able to:
1. Identify ways to incorporate digital dentures in their practice
2. Understand advantages and limitations of different digital denture workflows
3. Communicate with the dental laboratory during the process of digital denture fabrication 

About the Speaker:
Dr. Despoina Bompolaki is a Prosthodontist and a Diplomate of the American Board of Prosthodontics. She holds a Certificate in Prosthodontics and a Master’s in Oral Biology from Texas A&M University. She is an Associate Professor and Director of Clinical Restorative Dentistry at Oregon Health & Science University. She conducts clinical research in the field of Prosthodontics, and her published work has been recognized nationally and internationally. She is a Fellow of the American College of Prosthodontists (ACP) and the Academy of Osseointegration (AO) and serves on several committees within these organizations. Since 2022, she serves as the Continuing Professional Education Director for the American College of Prosthodontists. She is also a member of the American Association for Dental, Oral, and Craniofacial Research (AADOCR) and the American Dental Education Association (ADEA). Dr. Bompolaki has maintained an active clinical practice throughout her academic career, focused on fixed, removable and implant prosthodontics. 

 


10:00-10:20am: BREAK 


 

10:20-11:20am

 "A Close up Look in Dental Adhesion and Future Trends"  

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Ana Bedran-Russo, DDS, MS, PhD 
Professor and Chair, Department of General Dental Sciences in Restorative Dentistry, Marquette University School of Dentistry 

Synopsis: The use of dental adhesive systems is essential to restorative dentistry and is often seen as a quick step during placement of direct and indirect restorations. However, this routine step is key for the longevity of dental restorations. Here we will provide an overview of the status of dental adhesive systems, clinical shortcomings, and tips to improve performance. The presentation will also cover future trends. 

Learning objectives: 
1. Review and differentiate types of dental adhesive systems for bonding to enamel and dentin
2. Learn about current pitfalls with adhesive-based restorations leading to secondary caries
3. Develop an understanding of technological advancements of bonding systems and limitations
4. Learn strategies to improve sealing and strength of adhesive-based restorations. 

About the Speaker:
Dr. Ana Bedran-Russo DDS, PhD is Professor and Chair in the Department General Dental Sciences of Marquette University. Dr. Bedran-Russo utilizes her experience as dentist and biomaterials researcher to understand functional aspects of dental tissues towards the goal of strengthening and sustaining the natural dentition. Her clinical efforts center on preserving tooth structure and minimally invasive interventions and include leading clinical trials. Her research lab is focused on studies of dentin and its relationship with dental biomaterials. Her group has pioneered the use of bioinspired strategies to modulate properties of dentin and dentin-resin interfaces with high translational impact in the repair of dentin and disease prevention. Dr. Bedran-Russo has published over 145 peer-reviewed papers and 4 book chapters. Her research is supported largely by federal research grants. She lectures nationally and internationally is various topics in restorative dentistry and dental research. She is actively involved in the leadership of many dental organizations. 


11:20-12:20pm

Buonocore Memorial Lecture
Sponsored by Dentsply Sirona

"Longevity of Dental Restorations or Longevity of Teeth: What Matters?"

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Niek J.M. Opdam DDS, PhD
Associate Professor of Restorative Dentistry and Cariology, Department of Dentistry at Radboud University, Nijmegen Medical Centre, The Netherlands

Synopsis:  In restorative dentistry, clinical trials are often performed to compare longevity of different types of restorations using a diversity of materials and techniques. It is assumed that restorative materials that are associated with lower failure rate are also beneficial for maintaining the patients oral function in the long term. In that perspective, amalgam is sometimes considered as superior to composite resin, based on the results of available clinical trials. However, in the last decade, it has become more and more obvious that not only materials and techniques, but also other factors, determine the results of restoration survival studies, with an even higher impact. Patient factors, in particular, have been proven to be of major influence on failure rates of restorations, while still little is known about the potential important risk factor of decision making by the dentist.

Niek Opdam’s lecture will focus on these aspects with the key question: "How can restorative dentistry help to maintain the quality of oral function for the patient in the long term?"

Learning Objectives:
1) To summarize the general survival rates of different types of dental restorations.
2) To understand the relevance of different risk factors determining restoration survival on material, patient, and dentist level.
3) To distinguish certain types of high-risk patients.
4) To consider restoration longevity in the perspective of tooth longevity

About the Speaker:
Niek Opdam graduated in 1980 and is associate professor at the Radboud University Medical Centre at Nijmegen, The Netherlands. He lectures throughout the world on restorative dentistry, practice based research and treatment of Tooth wear. Moreover, he is researcher in the field of restorative dentistry, focussing on practice-based research, secondary caries, and tooth wear. In 1998 he received his PhD on a Thesis on posterior composite. He has now published more than 130 papers in peer-reviewed journals and his H-Index is 36 on Scopus.  In 2017 he received the Ryge-Mahler award from the Dental Materials Group of the IADR for his clinical research and in 2021 the Ivar Mjör award for practice based research. From 2012-2015 he was Visiting Professor at the Federal University of Pelotas, Brazil. Niek Opdam was president of the practice-based research Group of the IADR and president-elect of the European Federation of Conservative Dentistry. Niek Opdam has a part-time referral practice with differentiation in adhesive dentistry in Den Bosch, The Netherlands.


12:20-2:00pm

LUNCHEON


2:00-3:00pm

Summit Lecture of Innovation
Sponsored by Septodont

"Beyond conventional restorative materials - is there room for regeneration in restorative dentistry?"

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Luiz Bertassoni, DDS, PhD 
Associate Professor, Division of Biomaterials and Biomechanics, OHSU School of Dentistry

Synopsis: In this talk, the interface of tissue engineering, regenerative biology and restorative dentistry will be described as a means to stimulate a discussion about the future of dental care. Recent innovations in tissue engineering strategies to fabricate mineralized tissues with precision will be presented, and discussed regarding their ability to create dentin/enamel substitutes. The development of point-of-care technologies, such as the tooth on-a-chip and how it may be used to develop better restorative materials will also be introduced.

Learning objectives: 
1. to describe methods of fabrication of dental tissues
2. to list the benefits of regenerative strategies
3. to differentiate restorative and regenerative biomaterials 

About the Speaker: Dr. Luiz E. Bertassoni is an Associate Professor at Oregon Health & Science University. He holds appointments at the Division of Biomaterials and Biomechanics in the School of Dentistry, the Department of Biomedical Engineering, the Cancer Early Detection Advanced Research center (CEDAR) at the Knight Cancer Institute. Dr. Bertassoni graduated with a DDS degree from Catholic University in Brazil, obtained a PhD in Biomaterials from University of Sydney, and was a postdoctoral researcher at UCSF, and subsequently at Harvard Medical School and MIT's joint program in Health Sciences and Technology. Dr. Bertassoni leads a multidisciplinary research group working on various aspects of biomaterials and tissue engineering. He is a recipient of over 30 national and international research awards, including the 2021 Oregon Medical Research Foundation New Investigator award, the IADR Centennial award, and the OHSU Faculty Excellence and Innovation award. 


 3:00-4:00pm
Cariology Lecture

"The Rise of Microbiome Therapy in Dentistry"

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Marcelle Nascimento, DDS, MS, PhD 
Associate Professor and Program Director of the Dental Clinical Research Unit, Department of Restorative Dental Sciences, University of Florida College of Dentistry 

Synopsis: The so-called microbiome therapy is gaining popularity in Dentistry as an alternative approach to promote oral and systemic health. The use of probiotics to improve gastrointestinal health has prompted interest in the value of this approach for oral applications. In particular, the concept of using prebiotics and probiotics to prevent the microbial chaos related to dental caries has fully emerged. This presentation will focus on the clinical and biological evidence for these exciting new therapies being developed for caries management. 

Learning objectives: 
1. Learn the basic principles of prebiotic and probiotic therapies for promotion of oral health.
2. Understand the evidence available on the use of these microbiome-based, alternative approaches for caries prevention and management.
3. Gain knowledge about what is coming in the near future in terms of novel technologies for caries control. 

About the Speaker:
Dr. Marcelle Nascimento is a Professor and Director of Dental Clinical Research Unit at the University of Florida College of Dentistry. She received her DDS and PhD in Cariology from the University of Campinas, Brazil, and she has been actively engaged in the teaching of Cariology and Operative Dentistry in the U.S. since 2007. Dr. Nascimento has been funded by NIH/NIDCR and industry to conduct clinical and translational science research in Cariology and Oral Microbiology. She is a member of the Executive Board of Directors of the American Academy of Cariology (AAC) and the American Dental Association (ADA) Council on Scientific Affairs. She is also councilor of the ADEA Cariology section and has served as president of the IADR Cariology Research group. Her most recent recognitions include the 2021 ADA Evidence-Based Dentistry Mid-Career Faculty Award, 2020 AADR/IADR William J. Gies Award Clinical Category, and 2019 IADR Cariology Research Group Award. 


4:00-5:00pm

The Tucker Lecture of Excellence 

"Cast Gold Restorations - A Pathway to Success"

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Richard D. Tucker, DDS
Private Practice, Bellingham, WA, and Affiliate Associate Professor in the Department of Restorative Dentistry at the University of Washington School of Dentistry, Seattle, WA

Synopsis: The technique of placing cast gold restorations will be presented, placing emphasis on esthetics and cavity form.  Longevity will be demonstrated with the review of long term recall observations, and the importance of materials will be stressed.  These restorations will demonstrate the value of a restorative material that can adapt to the ever changing occlusal patterns evident in the normal aging dentition. 

Learning Objectives:
1) Selection of restoration sequence for enhanced patient acceptance
2) Instrumentation used for ease of cavity preparations
3) Special techniques adapted for unique situations
4) Laboratory costs controlled by the miracle of refractory castings
5) Predictable cementing and finishing techniques

About the Speaker:
Dr. Tucker graduated from the University of Washington School of Dentistry in 1976, and has maintained a private dental practice in Bellingham Washington for the past forty five years.  In addition, he mentors three monthly clinical study clubs in gold restorations, and teaches two days a week at the University of Washington School of Dentistry as an Affiliate Associate Professor.  If he can’t be practicing dentistry, he enjoys fishing, sailing, and mountain climbing, having climbed six peaks over 18,000 feet.


 Friday, February 24th


 

8:15-12:00pm
(with 30min break at 10:00am)

“Composite Veneers- The Direct-Indirect Technique” 

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Newton Fahl, DDS, MS 

Synopsis: Direct-indirect composite veneers are made intra-orally, finished extra-orally, and luted on the same appointment. The benefits of this technique include superior marginal finishing and adaptation, improved physical properties, and shade modulation via the use of try-in pastes. This presentation will cover from fundamentals of the technique to its clinical application in the esthetic zone. 

Learning objectives: 
1. Learn the advantages of the technique over direct layering approaches.
2. Understand how direct-indirect composite veneers can complement ceramic veneers in clinical practice.
3. Learn the steps for successful implementation of the technique. 

About the Speaker:
Dr. Newton Fahl, Jr. received his DDS degree from Londrina State University, Brazil, in 1987. In 1989 he received the Certificate in Operative Dentistry and Master of Science degree from the University of Iowa, USA. Dr. Fahl is a member of the American Academy of Esthetic Dentistry (AAED), founding member and past president of the Brazilian Society of Aesthetic Dentistry (BSAD), and past president of the Society for Color and Appearance in Dentistry (SCAD). He is an MCG-Hinman Foundation fellow. His passion and dedication to education have led Dr. Fahl to be the recipient of the American Academy of Esthetic Dentistry (AAED) 2008 President´s Award for Best Teacher and the 2011 American Academy of Cosmetic Dentistry (AACD) Excellence in Cosmetic Dentistry Education Award. Dr. Fahl is an Adjunct Professor of Operative Dentistry at the University of North Carolina (UNC). Dr. Fahl has published 


 

RESERVE SPEAKER

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Taiseer Sulaiman, DDS, PhD
Associate Professor, Division of Comprehensive Oral Health
UNC Adams School of Dentistry

Synopsis:  NOT ALL ZIRCONIAS ARE THE SAME!! There have been numerous generations of monolithic zirconia since its introduction as a full contour indirect restorative material in 2010. Manufacturers and researchers hope to develop a zirconia material that combines strength and translucency. This presentation will provide an in-depth overview of the various zirconia generations and what a clinician should know about the mechanical and optical properties of each generation to aid in the selection process when prescribing zirconia restorations. The most recent monolithic zirconia cementing protocols will also be discussed. Finally, what clinical-based evidence on monolithic zirconia restorations has recently been reported in the literature, and can an alternative laboratory survey method provide useful information on zirconia's current clinical status?

Learning Objectives:
1.  Attendees will be able to classify the various types of zirconia materials that are currently available based on their Yttria concentration.
2.  Recognize the mechanical (including wear characteristics) and optical properties of each zirconia type, as well as their impact on clinical considerations.
3.  Attendees will learn how to effectively cement zirconia restorations and learn about recent clinical outcomes.

 About the Speaker:
Taiseer Sulaiman is a Tenured Associate Professor and the Director of the Advanced Operative Dentistry and Biomaterials Research at the Adams School of Dentistry, University of North Carolina at Chapel Hill where he earned his clinical certificate in Operative Dentistry and his PhD in Dental Materials from the Department of Prosthetic Dentistry and Biomaterial Sciences from the University of Turku in Finland in collaboration with the Department of Operative Dentistry at UNC. Dr. Sulaiman is a wet-handed clinician, and a researcher who is passionate about bridging the gap between dental research and clinical application. Dr. Sulaiman’s research focus is on dental ceramics, adhesion, cements, color and appearance in dentistry, and biomimetics. He has published over 80 peer-reviewed articles, abstracts, and book chapters. He is a member of many academies including the Academy of Operative Dentistry (where he serves as councilor to the academy), the Society of Color and Appearance in Dentistry, IADR/AADR, and the American Dental Association. He has lectured on numerous national and international stages and serves as a reviewer for many peer-reviewed journals.


Table Clinic Presentations
1:45 - 4:45


 

“How Forgiving is Amalgam as a Restorative Material?”

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Clyde Roggenkamp DDS
Loma Linda University School of Dentistry

Synopsis:  Laboratory research shows very good results repairing defective existing amalgams with fresh amalgam if accomplished using sufficient condensation pressure and dwell time.  Additionally amalgam demonstrates acceptable compressive strength despite extreme (gross) contamination with water, saliva, blood or hand-piece lubricant oil as long as other details of condensation are controlled.

Objectives: 
1)Describe a method from research for repairing existing amalgam with fresh amalgam for maximum union and strength of bond.
2) Determine why amalgam (in clinical situations where ordinary isolation is minimal) is supported as the material of choice due to its forgiving properties shown from these unique laboratory studies.


 

 “The Natural CAD/CAM Anterior Implant Single Tooth Restoration:  A Novel Digital Workflow”

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Leandro Passos Soares, DDS, MSD, PhD
Resident in Operative Dentistry & Biomaterials at the University of North Carolina in Chapel Hill Adams School of Dentistry

Synopsis:  Often the patient’s natural tooth is used as an immediate provisional restoration to achieve predictable results in terms of aesthetics and soft tissue architecture.  A distinct digital strategy was utilized to obtain a natural final crown restoration by using the patient’s tooth associated with a lithium disilicate customized implant abutment.

Objectives:
1)Recognize the clinical implications associated with an immediate implant placement and Provisionalization technique.
2) Recognize the role of digital implant planning, interim and final design on overall aesthetic and functional success.
3) Understand the applicability of a CAD/CAM system through a novel digital workflow to obtain a customized abutment associated with reusing the patient’s tooth for the final restoration.


“Minimally Invasive Restorative Dentistry for Clinical Management of Enamel Defects”

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Dr. Rana Sedky
Ain-Shams University in Cairo, Egypt

Synopsis:  Clinical management of enamel defects using Minimally Invasive Restorative Dentistry Procedures (MIRD) offers several treatment options that we can resort to before drilling the tooth.  These treatments can be used solely or in combination to get an optimum outcome functionally, biologically, and esthetically if used correctly.  The key indecision-making of these cases is to begin with the end in mind.

Objectives:
1) Diagnosis of different enamel defects and understanding the anatomy of the lesion.
2) Treatment options in minimally invasive restorative dentistry procedures and the clinical limitation of each.
3) Mind-map on the decision-making process of MIRD.


“Orthodontic Tooth Extrusion to Enable Restoration of damaged Teeth”

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Richard D. Tucker, DDS
Private Practice in Bellingham, WA

Synopsis:  A simple technique for the extrusion of fractured and decayed teeth for subsequent restoration will be presented.  Included will be 20 and 30 year follow-ups to verify the final results.  No orthodontic bracket required.

Objectives: 
1) How to select a suitable tooth.
2) How to perform the actual process.
3) Preparation design for the final restoration.


 

"Randomized clinical trial comparing pre-heated and room temperature class II composite resin restorations"

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Dr. Ármann Hannesson
Private Practice in Reykjavík, Iceland

Synopsis:  This table clinic reviews a randomized clinical trial comparing pre-heated and room temperature class II composite resin restorations is a prospective split-mouth study with an independent blinded evaluator. A review of the literature revealed no comparable studies. The objective of the study is to evaluate the clinical survival and development of quality parameters of restorations applied at different temperatures.

Objectives:
1) Attendees can expect to learn more about the effect pre-heating has on physical and mechanical properties of composite resins.
2) Attendees can expect to learn more about the clinical implications of placing pre-heated composite resins into class II cavities.
3) Attendees can expect to learn if there are any differences in post-operative sensitivity when pre-heated and room-temperature composite resins are placed into molar cavities.


“Clinical Efficacy of Ceramic/Gold Inlays and Onlays”

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Dr. Karina Irusa
Academics at Tufts University of Dental Medicine

Synopsis:  Conservation of tooth structure is important to improve the long-term prognosis of the dentition.  It is for this reason that partial coverage indirect and direct restorations are encouraged when applicable.  With gold remaining as the “gold standard” for partial coverage restorations, questions around the longevity of currently available materials begin to arise.  What does evidence show?

Objectives:
1) List and discuss the clinical indications and contraindications of both inlays and onlay as well as when an onlay is better suited.
2) Discuss the various restorative materials indicated for partial coverage restorations; pros vs cons
3) Understand an evidence based discussion on the longevity of partial coverage restorations fabricated from different restorative materials.