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| Influence of Counterface Materials on the Wear and Friction Coefficient Behavior of Dental Composite Resin |
Meshref A. A., Mazen A. A., El-Giushi M. A. and Ali W. Y.
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Abstract:
In order to investigate the effect of counterface materials on the wear and friction coefficient behavior of the dental composites resin, a series of counterface materials that use in the oral environment are used in the dry and wet conditions. In the wet condition, artificial saliva was used as lubrication liquid. These counterface materials are stainless steel, polymethyl methacrylate (PMMA), amalgam, porcelain, and buffalo teeth. To determine the wear and friction coefficient, all materials are tested with two-body abrasion, reciprocating sliding apparatus at room temperature. The results have shown that counterface materials had pronounced effect on the wear and friction coefficient of dental composites resin. Based on the results obtained, it was found that the buffalo teeth material as counterface leads to a higher resistance to wear, whereas the stainless steel material showed minimum resistance to wear in the dry condition. In the wet condition, the stainless steel and PMMA material had a higher resistance to wear then the other counterface materials (buffalo teeth, porcelain, and amalgam).
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