Study on the water and wear resistance of experimental resin composites containing filler treated with polymerizable benzene group silane coupling agent

Abstract

The aim of this study was to evaluate tensile strength, the waterproofing, and wear-resistance of an experimental resin composite with a filler surface treated with silane comprising hydrophobic phenyl group3-(3-methoxy-4methacryloyloxyphenyl) propyltrimethoxysilane (p-MBS). Additionally, a tensile test, two types of wear tests, and electron spin resonance (ESR) spectroscopy were conducted. The results were analyzed using one-way analysis of variance and Bonferroni’s post-hoc tests; Pearson’s correlation coefficient as used to compare the results of the two types of wear tests. The tensile strength of the experimental resin composite was not affected by immersion in water due to the improved effect of the coupling layer treated with silane. The wear resistance of the experimental resin composite was comparable to that of a commercial resin composite. No difference in the separation width of the absorption spectrum or signal intensity was observed between the conventional silane coupling agent and p-MBS. Likewise, no change in the separation width of the absorption spectrum or signal intensity of the ESR spectrum of p-MBS was observed before and after the thermal stress. These findings indicated that the water resistance of the resin was improved following the treatment of the coupling layer with silane.