Scientific Advisory Board

Adam Davis, DDS
Adam Davis, DDS
  • Private Practice, Mount Juliet & Cookeville, TN

Dr. Adam Davis attended the University of Tennessee College of Dentistry, graduating in 2001. He spent five years serving as a general dentist in the US Navy. After fulfilling his active duty commitment, Dr. Davis entered the Endodontic Residency Program at Virginia Commonwealth University in Richmond, Virginia. He received his Certificate in Endodontics in June of 2008.

In July 2008, Dr. Davis opened Cumberland Endodontics with the goal of providing residents in the greater Nashville area with the finest endodontic care available. Cumberland Endodontics has since expanded to three locations as well as added additional doctors to the practice.

Dr. Davis was an assistant professor at the University of Tennessee College of Dentistry for several years, providing instruction to endodontic residents. His love for teaching is what started his relationship with Sonendo, doing lectures around the United States about GentleWave Technology and teaching a clinical and didactic course at his office in Tennessee for endodontists to learn both the clinical side of adopting the GentleWave Procedure into an endodontic practice as well as the operational, in relation to scheduling and treatment specifics.

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S. Ryan Facer, DDS
S. Ryan Facer, DDS
  • Private Practice, Murray, UT
  • Endodontic Researcher & Instructor

Dr. Ryan Facer earned his dental degree and specialty training from the University of Iowa, where he graduated with high distinction. He also received a bachelor’s degree in medical biology from the University of Utah.

Published in peer-reviewed journals such as the Journal of Endodontics and the Journal of Dental Research, Dr. Facer’s research interests range from sealer coverage, bacteriophage therapy, roentgen therapy and adult stem cells, with an emphasis on bone biology and dental trauma.

Dr. Facer pursues new and innovative ways for treating and curing dental caries, pulpal diseases, apical periodontitis and bone regeneration. Dr. Facer continues to teach locally and nationally and has actively maintained private practice since 2005.

Dr. Facer is co-founder of Greater Endodontics in Murray, UT, where he currently practices.

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Gerald Glickman Headshot
Gerald N. Glickman, D.D.S., M.S., M.B.A., J.D.
  • Diplomate of the American Board of Endodontics
  • Professor and Chair of the Department of Endodontics, Texas A&M Health Science

Dr. Gerald N. Glickman is the professor and chair of the Department of Endodontics and the director of Graduate Endodontics at Texas A&M. Dr. Glickman is the past president of the American Board of Endodontics and the American Association of Endodontists. Dr. Glickman is the chair of the CCI Task Force on biomedical sciences competencies. Dr. Glickman is a consultant for the Commission on Dental Accreditation and is the immediate past president of the American Dental Education Association.

Dr. Glickman has authored and co-authored many publications and has contributed to major texts in endodontics, including Pathways of the Pulp, Principles and Practice of Endodontics and Ingle’s Endodontics.

Dr. Glickman serves on the editorial board of the International Endodontic Journal and is an associate editor of the Journal of Endodontics. His research interests include nonsurgical endodontic retreatment, risk management and endodontic instrumentation and obturation. Dr. Glickman also maintains a part-time private practice limited to endodontics in Dallas.

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Markus Haapasalo Headshot
Markus Haapasalo, D.D.S., Dr. Odont. (PhD), F.R.C.D.C. (Endodontics)
  • Diplomate of the American Board of Endodontics
  • Professor and Chair, Division of Endodontics, University of British Columbia

Dr. Markus Haapasalo is the professor and chair of the Division of Endodontics at UBC, Vancouver, Canada. He is the former head of the Department of Oral Biological and Medical Sciences.

Dr. Haapasalo has authored or co-authored over 200 scientific peer-reviewed articles and written chapters in several endodontic textbooks. 

Dr. Haapasalo is the editor-in-chief of Endodontic Topics and an editorial board member of the International Endodontic Journal. In endodontics, his areas of special interest include instrumentation, biofilms, irrigation, persistent infections and resorptions. In addition, Dr. Haapasalo has received several teaching awards and is an eminent speaker at many international conferences.

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Dr. Eric Herbranson, B.S., D.D.S., M.S
Eric Herbranson, B.S., D.D.S., M.S. (Endodontics)
  • Fellow of the International College of Dentists
  • Private Practice, San Leandro, CA, USA

Dr. Eric Herbranson has more than 40 years of experience in clinical endodontics, teaching and image production since graduating with an M.S. from Loma Linda University. Dr. Herbranson is a co-founder and the chairman of the board for eHuman, where he developed the unique processes and methodology for capturing images of human and dental anatomy now used as the basis for eHuman’s 3DTooth Atlas, TMJ Occlusion Atlas and other products.

Dr. Herbranson has long been a thought leader in endodontics, on dentin preservation and maintaining the natural anatomy of the tooth, which closely aligns with Sonendo’s mission of Saving Teeth Through Sound Science® Technology. He is actively involved in speaking and education at both universities and conferences on subjects that include: incorporating new technologies into dentistry, surgical microscope photography and endodontic techniques related, but not limited, to dentin preservation.

Dr. Herbranson has an ongoing interest in dental anatomy and has authored and co-authored numerous national periodicals and contributed to dental textbooks, including Pathways of the Pulp, Endodontics: Principles and Practice and Disinfection of Root Canal Systems: The Treatment of Apical Periodontitis

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Asgeir Sigurdsson Headshot
Asgeir Sigurdsson, D.D.S., Cand. Odont., M.S. (Endodontics)
  • Diplomate of the American Board of Endodontics
  • Associate Professor and Chair, Department of Endodontics, New York University

Dr. Asgeir Sigurdsson is the chair of the Department of Endodontics at the New York University College of Dentistry. He is also an adjunct associate professor at UNC, honorary clinical teacher in endodontology; UCL Eastman Dental Institute, London UK; and honorary clinical associate professor in the Faculty of Dentistry, The University of Hong Kong. He is also the director of the American Board of Endodontics.

Dr. Sigurdsson has authored and co-authored over 60 peer-reviewed articles and 19 textbook chapters.

Dr. Sigurdsson is currently on the editorial board of the International Endodontic Journal and Dental Traumatologia. His focus lies on the topics of pain, pain modulation, endodontics, dental trauma and/or forensic sciences. Dr. Sigurdsson has been invited over 160 times to give lectures, in 44 countries all over the world.

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Dr. James Smith, Jr.
James A. Smith, Jr. D.M.D.
  • Private Practice, Birmingham, AL, USA
  • Assistant Professor at University of Alabama-Birmingham

Dr. Smith is a native of Bessemer, Alabama, and has more than 35 years of experience in clinical endodontics. After graduating from the University of Alabama School of Dentistry in 1980, where he was a ‘walk on’ football player for Coach Paul ‘Bear’ Bryant, Dr. Smith pursued his Certificate in Endodontics at the University of Alabama School of Dentistry and the Birmingham V.A., completing his training in 1982.

Since graduating with his Certificate in Endodontics, Dr. Smith has continued his endodontic training with many years of continuing dental education, including specialized training in microsurgical endodontic techniques with Dr. Gary Carr (father of the dental operating microscope) in San Diego, CA. Dr. Smith was one of the first two endodontists in the state of Alabama to use the dental operating microscope while performing root canal treatment and periradicular surgery, and since 1995, he has performed more than 21,000 procedures using the microscope.

Dr. Smith is the co-author of a clinical research paper published in the Journal of Endodontics in November 2014, and he lectures across the country about endodontics and, most recently, the GentleWave® Procedure.

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