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Inducing Third Molar Agenesis Using Fully Guided Third Molar Tooth Bud Ablation (3TBA)

A Free  Dental CE Webinar  hosted by Dental CE Academy

On Demand Dental CE Webinar recorded.

Scroll below for course description and instructions


COURSE FEE:  Complimentary Access

CREDITS: This continuing education activity is designated for 1 credit

DURATION: 60 minutes

AGD PACE SUBJECT CODE:  310 Oral and Maxillofacial Surgery


MODE: Electronically Mediated | On Demand CE Webinar | Recorded January 24, 2024. Review December 31, 2024.

SPEAKER(s): Leigh Colby, DDS, MS

AUDIENCE: Dentists, Dental Hygienists, Dental Therapists, Dental Assistants

TECHNOLOGY REQUIRED:  Mobile device, laptop or desktop with internet connection | Google Chrome Browser


  1. Watch the above recorded lecture. Do not fast forward, you may pause and resume at your own pace.

  2. Tap Here and Download the Handout

  3. Tap Here and Complete the Quiz for CE Credit

  4. Tap Here to request assistance with CE credit 

  5. CE credit verification will be sent to you from Dental CE Academy within 1 minute of quiz completion. Verify the email you entered is correct. Be sure to check spam/junk/promotions folders. 

COURSE SUMMARY: Fully guided third molar tooth bud ablation (3TBA) is being developed to be a safe, rapid, and effective means of preventing third molars from forming. Detailed procedure information will be presented that includes 3TBA screening and pre-op procedures, protocols for a safe 3TBA procedure, histological and radiographical characterization of the post 3TBA healing response, and an overview of ongoing human clinical trials.


  1. Describe the benefits of early intervention in 3rd molar treatment.

  2. Describe the anatomy-driven rationale behind guided third molar tooth bud ablation.

  3. Describe limitations that resulted in failure of earlier attempts at third molar tooth bud ablation.

  4. Describe the key physical surgical requirements of guided third molar tooth bud ablation that result in 100% success in animal trials.

  5. Describe the radiographic and histological outcomes of fully guided third molar tooth bud ablation.

Dr. Leigh Colby DDS MS
Leigh Colby, DDS MS

Leigh Colby, DDS, MS

President, CEO; Triagenics

From 1995 through 2015 Dr. Colby was the founder, CEO and sole shareholder of Oregon Dental Care, a successful group dental practice in Oregon that delivers high quality patient care in a zero defect operating environment. Oregon Dental Care was acquired by InterDent in late 2015 where he served as the Managing Clinical Director. Prior to starting Oregon Dental Care in 1995 Dr. Colby was involved with three high-tech startups that all remain in successful operation today. In 1980 he was the principal founder of Laserdyne Corporation and wrote the ground-breaking specifications for the successful high-resolution Beam Director general-purpose CNC laser machining system. The Beam Director system remains the #1 selling general-purpose laser machining system worldwide. In 1984 he assisted the PhD EE founder of Cyberoptics Corporation in defining their initial product specifications and market applications to establish initial distribution channels for their unique high resolution, non-contact laser gauging and automated inspection products. Dr. Colby worked with CyberOptics to develop and implement a marketing plan which drove initial product sales, and propelled them to a market leader, where they remain today. In 1986 Dr. Colby teamed up with three PhD-level biochemists as their Vice President of Marketing to define and establish their first commercial operations for Surmodics, Inc. His 10-year effort at Surmodics ultimately resulted in revenues approaching $100M annually for the use of PhotoLink high-reliability biocompatibility enhancement technology on a variety of widely recognized implant and disposable medical devices. Surmodics remains a publicly traded operation. Dr. Colby graduated from the University of Minnesota School of Dentistry in 1980, has earned his M.B.A. degree from Northwest Christian University, D.D.S. and B.S. degrees from the University of Minnesota, B.S. degree from St. John’s University and is a certified Lean Six Sigma Master Black Belt.

DISCLOSURE OF SPEAKER AND FACULTY COMMERCIAL RELATIONSHIPS:  According to Dental CE Academy's Conflict of Interest and Disclosure Policy, faculty and speakers for any course are expected to disclose any economic support, personal interests, or potential bias that may be perceived as creating a conflict related to the material being presented. Disclosure statements are printed in each course description and announced by moderators or individual speakers at the beginning of each presentation. This policy is intended to alert the audience to any potential bias or conflict so that participants may form their own judgments about the material being presented.

CONFLICT OF INTEREST AND FINANCIAL DISCLOSURE: This course is sponsored by TriAgenics.  Dr. Leigh Colby declare a financial relationship with TriAgenics. For written documentation contact


DENTAL CE ACADEMY DISCLOSURE: The views expressed and opinions and materials presented during these live and recorded presentations represent the personal views and opinions of the individual speaker and do not necessarily represent the views and opinions of Dental CE Academy.  Dental CE Academy assumes no responsibility for the content of the presentations made by the individual speakers. Any suggested protocols for treatment, materials, or services may be based up on the speakers' own clinican experience and should not be construed as Dental CE Academy recommended or endorsed. Selected presentations may include exploratory research or experimental procedures and are intended for informational purposes that may lead to new interest and scientific breakthroughs in the fields of dentistry.  Dental CE Academy appreciates its educators who share their knowledge and expertise. This level of dedication to dentistry allows our profession to expand and thrive and provokes necessary discussion and understanding. 

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