Bacterial leakage of mineral trioxide aggregate as compared with zinc-free amalgam, intermediate restorative material, and Super-EBA as a root-end filling material

Journal of Endodontics
E J FischerC H Miller

Abstract

Several dye leakage studies have demonstrated the fact that mineral trioxide aggregate (MTA) leaks significantly less than other root-end filling materials. The purpose of this study was to determine the time needed for Serratia marcescens to penetrate a 3 mm thickness of zinc-free amalgam, Intermediate Restorative Material (IRM), Super-EBA, and MTA when these materials were used as root-end filling materials. Fifty-six, single-rooted extracted human teeth were cleaned and shaped with a series of .04 Taper rotary instruments (Pro-series 29 files). Once the canals were prepared in a crown down approach, the ends were resected and 48 root-end cavities were ultrasonically prepared to a 3 mm depth. The teeth were then steam sterilized. Using an aseptic technique, under a laminar air flow hood, the root-end cavities were filled with amalgam, IRM, Super-EBA, and MTA. Four root-end cavities were filled with thermoplasticized gutta-percha without a root canal sealer and served as positive controls. Another four root-end cavities were filled with sticky wax covered with two layers of nail polish and served as negative controls. The teeth were attached to presterilized (ethylene oxide gas) plastic caps, and the root ends were placed into...Continue Reading

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Citations

Jun 25, 2009·Journal of Oral Science·Masoud ParirokhMahmoud Torabinejad
Nov 29, 2014·Case Reports in Dentistry·Vinod KumarT Mahantesh
Dec 12, 2012·Journal of Endodontics·Johannes MenteThorsten Pfefferle
Dec 25, 2007·Journal of Endodontics·Mark C TingeyMing Shih Levine
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Apr 16, 2013·International Endodontic Journal·D Keswani, R K Pandey
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May 18, 2005·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·Eudes GondimFrancisco José de Souza-Filho
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