Effect of Shape and Size of Silanated Fillers on Mechanical Properties of Experimental Photo Cure Composite Resins

Abstract

The binary system of hybrid fillers selected from four irregular fillers (1.7-21.5 microns), five spherical fillers (0.46-31.2 microns), and a microfiller of 0.04 micron, were applied to photo cure composite resin and mechanical properties were measured. The strength for the hybrid of irregular and spherical fillers tended to increase as the size of component fillers decreased. The strength for the hybrid of the same fillers in shape also increased as the size of fillers decreased. The strength for the hybrid containing 30% microfiller showed the same trend, especially, the largest strength was obtained from hybrids containing small spherical fillers.