[Comparative studies on the mechanical properties of the current self-hardening and light-hardening plastic filling...

The bending strength, elasticity modules, and bending modules of 11 different synthetic resin materials were determined in bending tests on test modules stored for 3, 21, and 92 days. The bending strength of conventional composites (coarsely filled) proved to be almost twice as high as the microfilled composites, including Isosits. Elasticity modules and bending modules of those preparations which can be thoroughly polished did not differ from the values of unfilled PMMA synthetic resen. Photopolymerization generally led to comparatively poor results.