Poster Presentation

Poster Presentation

PR40 - Comparison of Debridement Efficacy Of EndoVac™ and Passive Ultrasonic Irrigation In Vitro

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

Bacteria is a known cause of endodontic infections. The primary purpose of root canal treatment is to eliminate the bacterial load in the canal by chemomechanical debridement. However, due to the complexity of canal anatomy, including fins, isthmuses, lateral and accessory canals, complete removal of bacteria inside the canals is hard to achieve. Objectives: The purpose of this investigation is to evaluate the efficacy of EndoVac and Passive Ultrasonic Activator in combination or alone against Enterococcus faecalis biofilm using an in vitro single canal tooth model. Materials and methods: Forty single canals extracted teeth were collected, cleaned and standardized to 16 mm of root length by sectioning the coronal portion. Teeth were cultured in Schaedler broth with E. faecalis for 28 days and then randomly assigned to four treatment groups (conventional needle, Passive ultrasonic, EndoVacTM or combination of Passive ultrasonic and EndoVacTM.). The teeth were instrumented to size 35/.04 and irrigated with respective irrigation protocol using 5.25% NaOCl and 17% EDTA as the irrigation solutions. Bacteria were sampled before and after instrumentation. Data were analyzed using analysis of variance (p<.05) followed by the Scheffé test. Results: All samples had homogenous bacterial growth before instrumentation. There was no difference in bacteria reduction after instrumentation and irrigation among different treatment groups. Conclusion : Conventional needle irrigation was found to be equally effective in reducing bacterial load as Passive ultrasonic irrigation and EndoVacTM alone or in combination when 5.25% NaOCl and 17% EDTA were used as irrigation solution under current experimental condition.

Manila P. Joshi

Resident /Endodontist
University of Illinois at Chicago

Dr. Joshi did her dental school from NewYork University. After her degree, she practiced for 3 years and found her true passion in Endodontics. She joined the University of Illinois Chicago for her endodontic training and graduated in 2017. She is currently working as an associate Endodontist in Bethesda, Maryland.

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Qian Xie

Assistant Professor, Director of the Endodontics Prepatient Care
University of Illinois at Chicago

Dr. Xie did her DDS, MS, and Ph.D. from West China College of Stomatology, Sichuan University, Chengdu, China. She did her post-doc training in microbiology and caries research from the University of Illinois at Chicago. She then completed her post-graduate training in endodontics from the University of Illinois at Chicago. She is currently an assistant professor and Director of the Endodontic pre-patient care at UIC. She has her research interest in endodontic irrigants and microbiology and has around 13 different publications to her credit.

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Bradford R. Johnson

Dept. Head and Program Director, Endodontics
University of Illinois at Chicago

Dr. Johnson completed his undergraduate education at the University of Colorado, received his DDS degree from Virginia Commonwealth University, and endodontics specialty training at the University of Illinois at Chicago where he is currently department head and Director of PostGraduate Endodontics. Dr. Johnson has published over 50 clinical and research articles and abstracts in peer-reviewed dental journals and is a coauthor of five textbook chapters. In addition to full-time teaching, he maintains a part-time clinical practice limited to endodontics.

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