Effect of experimental heat treatment on mechanical properties of resin composites
作者： Ivone L. Santana , Edméa Lodovici , Jivaldo R. Matos , Igor S. Medeiros , Caroline L. Miyazaki
DOI: 10.1590/S0103-64402009000300006
关键词:
摘要: The aim of this study was to verify the influence an experimental heat treatment (170 masculineC/10 min) using a casting furnace on mechanical properties (hardness and flexural strength) 2 commercial direct resin composites (TPH Spectrum Filtek P60) compared indirect system (BelleGlass). Heat temperature determined after thermal characterization by thermogravimetry (TG) differential scanning calorimetry (DSC). Data analyzed ANOVA Tukey's test at 5% significance level. There statistical for main factor (p=0.03) composite (p=0.02), strength. For Knoop hardness, only statistically significant (p=0.00). P60 presented higher hardness than TPH. No correlation between tested detected. Based these results, it possible conclude that influenced strength composites, while not observed hardness. association with simple post-cure may be alternative current systems, although more studies are needed other application.
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