SP-27 Minimally Invasive Apical Preparation Size in the New Era of Modern Irrigation

5 (1 vote)

CE Hours: 0.75

Description: The goal of root canal treatment is to prevent or reverse apical periodontitis by removal of necrotic/infected or irreversibly inflamed tissues, followed by obturation of the root canal space. Mechanical instrumentation and irrigation play a key role in the removal of pulp tissue, contaminants, debris, and microorganisms from the root canal system. Different adjunctive agitation techniques have been developed to help irrigating solutions penetrate the complexities of the root canal system. Passive ultrasonic irrigation, apical negative pressure irrigation systems, sonic activation, multisonic agitation, and laser activation have been reported to be superior to conventional positive pressure needle irrigation in regards to smear layer removal, antimicrobial effect, and decreased post-operative pain. Minimally invasive canal preparation has been promoted with the activated irrigation approaches. However, what is not known is the effect of minimally invasive instrumentation, in conjunction with an activated irrigation approach on clinical outcomes (retention/longevity, healing of apical periodontitis). Can infected root canals be predictably disinfected following conservative root canal preparation? Based on a review of the current literature and personal clinical experience, appropriate preparation sizes for root canal treatment will be explored.

Learning Objectives:  

  • Describe how apical preparation size during root canal treatment affects the clinical outcome.
  • Evaluate the current best available evidence to support minimal invasive canal preparation with different irrigation protocols.
  • Choose the appropriate preparation size for root canal treatment upon irrigation protocol.


Minimally Invasive Apical Preparation Size in the New Era of Modern Irrigation
Recorded 05/22/2024  |  45 minutes
Recorded 05/22/2024  |  45 minutes
8 Questions
CE Test
5 Questions  |  Unlimited attempts  |  4/5 points to pass
5 Questions  |  Unlimited attempts  |  4/5 points to pass
0.75 CE credits  |  Certificate available
0.75 CE credits  |  Certificate available

Qian Xie, D.D.S., Ph.D.

Dr. Qian Xie received her BDS and PhD degrees from Sichuan University, Chengdu, China. After a few years of practice, Dr. Xie returned to graduate school at the University of Illinois at Chicago College of Dentistry, where she received her Certificate of Specialty in Endodontics. Dr. Xie is a Diplomate of the American Board of Endodontics. Dr. Xie has been a member and an active participant in the American Association of Endodontists, the American Dental Association, the Chicago Dental Society, and the Edgar D. Coolidge Endodontic Study Club. She is a fellow of the International College of Dentists. Dr. Xie has a broad background in oral science and clinical dentistry, with specific training and expertise in oral microbiology research and clinic experience in endodontics. Her research background includes caries research, oral biofilm and endodontic irrigation.

Disclosure(s): No financial relationships to disclose