SP-20 Root Canal Instrumentation and Dentinal Defects: Should We Be More Conservative?

4 (2 votes)

CE: 0.75

Course Description: 

During root canal instrumentation, several incidents might jeopardize the outcome of endodontic therapy. In the past, several in vitro studies, have shown an association between root canal treatment procedures with the creation of dentinal defects. Theoretically these defects could propagate and develop in a VRF, which often times results in extraction of the affected tooth. Recently, different studies with more accurate methodologies, have questioned whether root canal instrumentation is related to the development of defects. Meanwhile, due to this called risk of fracture, there is a trend of less invasive preparation of the root canal. This trend emcompasses both endodontic access and root canal instrumentation. This presentation aims to discuss whether root canal instrumentation might lead to dentinal defects. What is the real impact of conservative root canal preparation in dentinal defects and consequently VRF? Are the procedures currently used for root canal disinfection sufficent for proper disinfection with such conservative instrumentation? This presentations aims to discuss with an unbiased and scientific approach the relationship between root canal instrumentation and dentinal defects.

At the conclusion, participants should be able to:

  • Discuss the methodological aspects that led to the conclusion that root canal preparation promotes dentinal defects.
  • Describe the limitations of adjunct disinfection procedures.
  • List the actual factors that are associated with Vertical Root Fracture.


MP3 Audio
Open to listen to or download MP3 audio.
Open to listen to or download MP3 audio.
Open to view video.
7 Questions
5 Questions  |  Unlimited attempts  |  4/5 points to pass
5 Questions  |  Unlimited attempts  |  4/5 points to pass
1.00 CE credit  |  Certificate available
1.00 CE credit  |  Certificate available

Marcelo Santos. Coelho, D.D.S., M.Sc., PhD

Dr. Coelho was born in Brazil and obtained his DDS degree at the State University of Rio de Janeiro – UERJ in 1991. He obtained his Certificate of Endodontics at State University of Campinas – Unicamp in 1996 and his Master degree in Endodontics at Faculdade de Odontologia São Leopoldo Mandic in 2014. From 2015 to 2016 he served as a Visiting Scholar at University of North Carolina at Chapel Hill - USA. He is an active member of the American Association of Endodontics, European Society of Endodontology and Brazilian Society of Endodontics. Dr. Coelho has published several manuscripts and abstracts in peer reviewed journals. His research interests include: dentinal defects, root canal instrumentation and undergraduate education. Dr. Coelho is an assistant professor in the Endodontic Department of Faculdade São Leopoldo Mandic. He also works in a private practice limited to endodontics in Campinas.

Marcelo Coelho, D.D.S., Ph.D., M.Sc.

I declare that I have no proprietary, financial, or other personal interest of any nature or kind in any product, service, course, and/or company, or in any firm beneficially associated therewith, that will be discussed or considered during the proposed presentation.