نتایج جستجو برای: porcelain veneer
تعداد نتایج: 3789 فیلتر نتایج به سال:
plate model, were calculated by the theory of statically indeterminate beam and the finite element method. The factors that have the greatest effect on thermal residual stress in the veneer are coefficient of thermal expansion, modulus of elasticity and thickness of the layers. The relation between these factors and thermal residual stress after firing were studied. The effect of physical and m...
STATEMENT OF PROBLEM In some clinical situations, the length of either a prepared tooth or an implant abutment is shorter than ideal, and the occlusal clearance to be restored by a porcelain crown is large. Incisal thickness of the coping and the veneering porcelain should be considered to prevent mechanical failure of the crown. PURPOSE The purpose of this study was to investigate the influe...
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