Rojas, Seila SilvaFrigo, Geraldo José MangeronaBernardi, Maria Ines BassoRastelli, Alessandra Nara de Souza [UNESP]Hernandes, Antonio CarlosBagnato, Vanderlei Salvador2015-08-062015-08-062010Journal of Thermal Analysis, v. 99, n. 1, p. 263-268, 2010.0368-4466http://hdl.handle.net/11449/125937We have investigated the thermal and structural properties of different commercial dental resins: FiltekTM Z-350, Grandio®, Tetric Ceram®, and TPH Spectrum®. The purpose of the present study was to evaluate quantitatively the photo-polymerization behavior and the effect of filler contents on the kinetic cures of the dental resins by using Differential Scanning Calorimetry (DSC) and Fourier Transform Infrared Spectroscopy (FT-IR) techniques. We have successfully obtained the low and high glass transition T g values of the dental composite resins from DSC curves. It was also observed a good agreement between the both T g values, activation energies from thermal degradation, and the degree of conversion obtained for all samples. The results have shown that Tetric Ceram® dental resin presented the higher T g values, activation energy of 215 ± 6 KJ mol−1, and the higher degree of conversion (63%) when compared to the other resins studied herein.263-268engDegradationDental resinsDSCFT-IRThermal analysisArtigo10.1007/s10973-009-0521-6Acesso restrito212577157433834069149695262133937998391975397420494786024951866320194488572056439083046276321544