| Literature DB >> 19026888 |
Rick A Michaud1, John Burgess, Robert D Barfield, Deniz Cakir, Sandre F McNeal, Paul D Eleazer.
Abstract
The aim of this study was to compare the volumetric expansion of gutta-percha in the presence of eugenol or physiologic saline over time. Sections of gutta-percha cones were scanned to determine their total volume and surface area. They were then placed in sealed test tubes with either 2 microL eugenol or 2 microL saline and allowed to soak for 24 hours, 7 days, or 30 days. The results were scanned again to determine the volumetric changes in the material after placement in the test solutions. The results were statistically analyzed by using t tests and analysis of variance. Specimens soaked in eugenol showed a dramatic increase in volumetric expansion versus the saline group at all time periods. Sealers that incorporate eugenol could be attributed to gutta-percha volumetric expansion over time, thereby creating a better seal of the obturation material.Entities:
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Year: 2008 PMID： 19026888 DOI： 10.1016/j.joen.2008.08.025
Source DB: PubMed Journal: J Endod ISSN： 0099-2399 Impact factor: 4.171