Poster Presentation

Poster Presentation

PR60 - Potential Antimicrobial Methods for Provisionalizing Teeth After Endodontic Treatment

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

Introduction: Coronal leakage after non-surgical root canal therapy is a major concern among practitioners and has been proven to be one of the main contributions to failure of initial treatment. The aim of this study was to evaluate the use of a cotton pellet soaked in 2% Chlorhexidine and see its effects on bacterial leakage when compared to a plain cotton pellet or an orifice barrier. Methods: A total of 51 human teeth, including six controls, were instrumented, obturated with gutta-percha, and randomly assigned to one of three treatment groups: cotton pellet only (CP), 2% Chlorhexidine soaked cotton pellet (CHX), or a Permaflo orifice barrier (OB). Each root was suspended with restorative material and cyanoacrylate between two chambers: the coronal aspect was inoculated with a brain heart infusion broth of 108 colony-forming units of Enterococcus faecalis, the apical aspects were suspended in a well filled with brain heart infusion broth and phenol red. The wells were checked daily for color change and turbidity, indicating pH change and leakage of bacteria. Results: The majority of the teeth leaked within 20 days and the CP and CHX groups showed significantly sooner leakage than the OB group. The CP leaked a few days sooner than the CHX teeth but this was not statistically significant. Conclusion: The results of this study show that the addition of 2% CHX below the provisional restoration does not prevent bacterial leakage.

Laura Garden

Endodontic Resident
Virginia Commonwealth University

Laura Garden is originally from Roanoke, Virginia. She graduated from VCU School of Dentistry in 2012, completed an AEGD at UNC, and then practiced as a general dentist in Midlothian, VA for three years. She resides in Richmond, Virginia with her 17 month old son, Tupper, and her husband, Ben.


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Garry L. Myers

Graduate Program Director
Virginia Commonwealth University

Dr. Garry Myers currently serves as the graduate endodontic program director at Virginia
Commonwealth University in Richmond, Virginia. He completed his dental school
education at the University of Texas Health Science Center/ at San Antonio in 1985.
Following graduation Dr. Myers entered the USAF where he served for four years as a
general dentist before entering the endodontic residency program at Wilford Hall Medical
Center at Lackland AFB also in San Antonio. In 1998 after serving on active duty for 13
years, Dr. Myers left the USAF to enter private practice in Olympia, Washington where he
practiced for the next 16 years. In the summer of 2014, full time education entered the
picture when Dr. Myers accepted a position at VCU where he now works. He is currently
the president of the American Association of Endodontists having been involved over the
last nine years with various committees of the AAE as well as serving on the Board of


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Todd Kitten

Director of Biomedical Sciences Professor
Virginia Commonwealth University

Dr. Kitten's research focuses on oral streptococci and their dual roles as beneficial colonizers in the mouth and opportunistic pathogens elsewhere in the body. Genetic, genomic, post-genomic, biochemical, and biophysical approaches are used to examine bacterial interactions in both environments. He is particularly interested in examining Streptococcus sanguinis, both in its ability to serve as a beneficial member of the normal oral flora and in its role in causing infective endocarditis, a serious cardiac infection.


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Alvin Best

Virginia Commonwealth University

3/11–Present: Director of Faculty Research Development and Professor (Associate Professor
until 2013), Department of Periodontics, Virginia Commonwealth University
PhD, (1984) Biostatistics, Medical College of Virginia at Virginia Commonwealth University,
Richmond, VA USA
MA, (1978) Quantitative Psychology, L.L. Thurstone Psychometric Laboratory, University of
North Carolina, Chapel Hill, NC USA
BS, (1973) Mathematics and Psychology, University of Tennessee, Knoxville, TN USA.
Recipient of the Torchbearer award.


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Richard Archer

Associate Dean of Clinical Education
Virginia Commonwealth University

Dr. Archer earned his D.D.S. degree from The University of Maryland Dental School in 1982. He was sponsored by the United States Navy for specialty training and graduated from The Ohio State University College of Dentistry in 1990 with a Certificate in Endodontics and a M.S. degree. After 11 years as a Navy Dental Officer, Dr. Archer was active in private practice for 17 years in Chesapeake, Virginia.
While teaching in the Navy GPR program at Naval Hospital Portsmouth, VA, Dr. Archer began teaching part time at the VCU School of Dentistry. He continued as an adjunct faculty member for 18 years before becoming full time faculty in 2009. Dr. Archer achieved his board certification in 2011 and is a Diplomate of The American Board of Endodontics.
Dr. Archer was the Predoctoral Endodontics Director from 2010 until 2016 and the Interim Chair of the Department of Endodontics from 2012 until 2014. He is still involved in teaching endodontics both on the predoctoral and graduate levels. Since 2013 he has been the VCU School of Dentistry Associate Dean for Clinical Education.


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PR60 - Potential Antimicrobial Methods for Provisionalizing Teeth After Endodontic Treatment

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