From the available biocompatible fibers, glass fibers have drawn the most attention due to their esthetic qualities and easy manipulation. While some investigators have studied the effect of the fibers on mechanical properties such as ultimate strength and fracture resistance of these bio-composites [1], the literature survey reflects that there are very few studies on the wear properties of such fiber-reinforced bio-composites. Thus, the main objective of this study is to investigate the wear characteristics of the fiber-reinforced dental bio-composite. The relationship between fiber weight fraction and fiber length of glass fibers incorporated into a dental resin and the wear resistance of these bio-composites is studied for various applied loads. For comparison, a particle filled bio-composite was also subjected to the wear test. The main objective of this study is to gain some insight into the micromechanisms of wear of these dental bio-composites and their relative performance.

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