Abstract
Indirect tooth restoration involves customized tooth replacements in the form of crowns, onlays, or inlays. The preparation design for an indirect restoration must maintain a balance between preserving the tooth structure and obtaining sufficient retention and resistance.
Ceramic inlays have gained popularity because of their esthetic appearance and improved physical and mechanical properties. The resistance to fracture is directly related to the amount of remaining tooth structure. The widened marginal ridges, the increased width of the isthmus and the increased depth of preparation are the main reasons for the decrease in resistance. The masticatory loads in the posterior region are much higher than in the anterior region. Amongst the posterior teeth, the premolars suffer the most from vertical fracture. The finite element method is considered as an important tool to study stress distribution.
Hence, in this study, we will compare the influence of cavity depth and width in generating stress patterns in premolars restored with ceramic inlays using finite element analysis (FEA).
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References
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