The effect of storage temperature on mechanical properties of gutta-percha and resilon

To compare the mechanical properties of Resilon and gutta-percha cones after storing at three different temperatures. One-hundred standardized size 40/02 gutta-percha cones and 100 Resilon cones were randomly divided into four groups. The first group of the materials were tested immediately after re...

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Published in:Journal of dentistry (Tehran, Iran) Iran), 2013-11, Vol.10 (6), p.548-553
Main Authors: Khedmat, Sedigheh, Aghajani, Farzaneh, Zaringhalam, Shabnam
Format: Article
Language:English
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Summary:To compare the mechanical properties of Resilon and gutta-percha cones after storing at three different temperatures. One-hundred standardized size 40/02 gutta-percha cones and 100 Resilon cones were randomly divided into four groups. The first group of the materials were tested immediately after receipt as the control group. The other three were stored in their packages at -12°C, 4± 1°C and 22± 2°C for three months. Then, obturating cones were loaded by a tensile force at the rate of 5mm/min. Physical integrity of gutta-percha and Resilon cones were also evaluated according to ISO6877. The data were analyzed by one-way analysis of variance, post hoc and t-test. A p-value
ISSN:1735-2150
2008-2185