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  • Includes Credits

    CE Hours: 2.0

    Description: The occurrence of tooth/root fracture is a well-recognized cause of tooth loss after endodontic treatment. It has been attributed to tooth structure removal associated with traditional endodontic cavity and canal instrumentation concepts. This understanding has given rise to novel Contracted Endodontic Cavity (CEC) designs that highlight directed dentin conservation while discarding traditional principles of outline and convenience form, and to minimal canal instrumentation/shaping, both in line with the contemporary concept of minimally invasive dentistry. It has been argued that tooth structure preservation directed access and instrumentation may increase fracture resistance of teeth potentially resulting in extended long-term survival; however, it has also been argued that it may compromise canal disinfection potentially resulting in impaired periapical healing.

    This lecture will describe the clinical applications of CEC and minimal canal instrumentation/shaping and review contemporary research into their possible impacts in specific tooth types. The potential benefits and risks associated with tooth structure preservation directed access and instrumentation will be debated in the context of minimally invasive endodontics, and options for clinicians to consider.

    Learning Objectives: 

    • Describe how various contracted endodontic cavity designs differ from traditional designs
    • Discuss the contemporary research on the various impacts of contracted endodontic cavity designs and minimal canal instrumentation/shaping
    • Debate the benefits and risks of contracted endodontic cavities and minimal canal instrumentation/shaping, and the clinical options for clinicians

    Shimon Friedman, D.M.D.

    Dr. Shimon Friedman is Professor Emeritus, former Head of Endodontics and Founding Director of the M.Sc. Endodontics Program at the Faculty of Dentistry, University of Toronto, Canada. He received the D.M.D. degree (1975) and endodontics certificate (1983) from the Hebrew University in Jerusalem, Israel. He is board-certified in endodontics in Israel and had served as Chairman of the Israel Endodontic Society from 1985 to 1988. With over 250 peer-reviewed articles, textbook chapters and research abstracts, and over 330 international lectures, Dr. Friedman has acquired extensive experience in endodontic practice, research and education. He is the recipient of several awards, culminating in the AAE’s 2008 Louis I. Grossman Award, as well as the AAE's 2018 I.B. Bender Lifetime Educator Award, for outstanding contributions to endodontic science and education. Though now retired, Dr. Friedman continues following the research and lecturing extensively on endodontic treatment outcomes, management of post-treatment endodontic infection, and impacts of contracted endodontic cavity designs on nonsurgical treatment efficacy and biomechanical responses of teeth. 

    Speaker Disclosure

    In accordance with this policy, I declare I have a past or present proprietary or relevant financial relationship or receive gifts in kind (including soft intangible remuneration), consulting position or affiliation, or other personal interest of any nature or kind in any product, service, course and/or company, or in any firm beneficially associated therewith, as indicated: Sonendo Inc.: Ownership Interest (stocks, stock options, patent or other intellectual property or other ownership interest excluding diversified mutual funds) (Ongoing), Scientific Advisory Board member (Ongoing)