| Summary: | 碩士 === 國立成功大學 === 機械工程學系 === 106 === The proposed study is aimed to evaluate the mechanical performance of various design parameters of inlay for cavities with deep margin elevation and the inter-relationship among these parameters. Finite element analysis was introduced to simulate the mechanical behaviour of the tooth and restoration. Response surface method was used to analysis the relationship between the mechanical performance of restored tooth and different prosthetic designs. Three materials of inlay: composite resin, ceramics, and glass-ceramic were examined in the present study. The result shows for all three materials, a wide isthmus will benefit the mechanical strength of the restored tooth. The effects of other parameters on the tooth’s mechanical behaviour varied when different material of inlay was used, but the thickness of the elevation didn’t show a strong influence. For conclusion, inlays with different material required distinct designs. It is important to choose the appropriate material and design of inlay to feat the tooth’s geometry and mechanical conditions of the patient.
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