Faculty Collaboration Database

A comparison of thermal properties between gutta-percha and a synthetic polymer based root canal filling material (Resilon). J Endod 2006 Jul;32(7):683-6

Date

06/24/2006

Pubmed ID

16793481

DOI

10.1016/j.joen.2006.01.008

Scopus ID

2-s2.0-33745206900 (requires institutional sign-in at Scopus site)   39 Citations

Abstract

A new polymer-based obturating material, Resilon, has been developed but there have been no studies identifying its thermal properties. The purpose of this study was to compare the melting point, specific heat, enthalpy change with melting and heat transfer between gutta-percha (GP) and Resilon (R). The first three tests were determined using a differential scanning calorimeter and the heat transfer test was determined using a split-tooth model. Results show no significant difference (t test, p > 0.05) between gutta-percha and Resilon for the melting point temperature (GP: 60.01 degrees C; R: 60.57 degrees C). There was a significant difference (t test, p < 0.05) in specific heat capacity (GP: 0.94 J/g degrees C, R: 1.15 J/g degrees C) and endothermic enthalpy change (GP: 10.88 J/g, R: 25.20 J/g) between the two materials. The heat transfer test showed a significant difference (Mann-Whitney, p < 0.05) in temperature increase between gutta-percha and Resilon within 3 mm of the heat source.

Author List

Miner MR, Berzins DW, Bahcall JK

Author

David Berzins BS,PhD Graduate Program Director for Dental Biomaterials in the General Dental Sciences/Dental Biomaterials department at Marquette University

MESH terms used to index this publication - Major topics in bold

Calorimetry
Gutta-Percha
Root Canal Filling Materials
Thermal Conductivity
Thermodynamics