Poster Presentation

Poster Presentation

PR55 - Effect of Canal Anastomosis on Periapical Fluid Pressure Build-Up During Needle Irrigation in Single Roots With Double Canals Using a Polycarbonate Model

Thursday, April 26
10:00 AM - 1:00 PM
Room: Exhibit Hall

Sodium hypochlorite is the predominant irrigant used in endodontic therapy for its ability to dissolve organic components of tissues, lubricate files for instrumentation, clear dentinal debris, and inactivate bacterial biofilms. However, care must be taken to avoid extrusion out of the root canal system and into the periradicular tissues.  Previous studies have shown that root canal anatomy is very complex with lateral canals and isthmi present that must be debrided with effective irrigation. This study used two polycarbonate models to simulate a single root with double canals, one as a “separate canal model” and the other a “canal anastomosis model,” to examine the effects of canal anastomosis on the generation of periapical fluid pressure at different fluid flow rates and insertion depths using a 30-gauge side-venting needle. The magnitude of pressure build-up decreased in the anastomosis model by almost 90% irrespective of the fluid flow rate or needle insertion depth. Pressure reduction in anastomoses-containing roots provides an explanation of why pressure generation in single roots is considerably higher. The results of this study indicate that a clinician can stay in the safe zone of preventing the generation of a potential NaOCl accident when the irrigant is delivered at a rate of lower than 4 mL/min in all situations, including conservatively-shaped canals, or canal systems with complex anastomoses.

John Camba

Resident
Georgia Regents University College of Dental Medicine

From Augusta, GA. Went to college at Georgia Institute of Technology, graduating with a B.S. in Biochemistry. Attended dental school at The Dental College of Georgia graduating in 2015, General Practice Residency at University of Washington Medical Center 2015-2016, currently a second year Endodontics resident at the Dental College of Georgia 2016-2018.

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Brian Bergeron

Program Director
Georgia Regents University College of Dental Medicine

Brian E. Bergeron, DMD serves as Associate Professor and Endodontics Residency Program Director at the Dental College of Georgia at Augusta University. He received his DMD from the University of Florida and completed a General Practice Residency at Offutt AFB, NE and a Residency in Endodontics at Wilford Hall Medical Center, Lackland AFB, San Antonio, TX. He served 23 years in the USAF Dental Corps, to include his final assignment as Endodontics Residency Director for the USAF program at Keesler AFB in Biloxi, MS. He is a Diplomate of the American Board of Endodontics and a Fellow in the International College of Dentists. He serves nationally on the ADA Dental Quality Alliance, the Scientific Advisory Board for the Journal of Endodontics, and as a Review Committee member for the Commission on Dental Accreditation.

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Lisiane Susin

Associate Professor
Georgia Regents University College of Dental Medicine

Medical Degree: Catholic University of Rio Grande do Sul- Brazil - 1997
Internship: Pediatric Endodontics - Federal Universith of Rio Grande do Sul- Brazil - 1998
Residency: Endodontics - Georgia Heath Sciences University- College of Dental Medicine - 2011, Endodontics - Lutheran University of Rio Grande do Su l- Brazil - 2000
Fellowship: Endodontics- Federal University of Rio Grande do Sul- Brazil, 1998, Temple University- Philadelphia, PA - 2005
Research: Outcomes of Clinical Endodontics, Material and Systems for root canal disinfection
Languages: English, Portuguese

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PR55 - Effect of Canal Anastomosis on Periapical Fluid Pressure Build-Up During Needle Irrigation in Single Roots With Double Canals Using a Polycarbonate Model



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