Elie E DAOU
Lebanese University
Lebanon
Title: Esthetic prosthetic restorations: Reliability and wear of antagonist dentition
Biography
Biography: Elie E DAOU
Abstract
Recent advances in ceramics have greatly improved the functional and esthetic properties of restorative materials. New materials offer an esthetic and functional oral rehabilitation, however their impact on opposing teeth is not well-documented. Scientifically, there are several methods of measuring the wear process of natural dentition which enhances the comparison of the results complicated. This conference will present an overview of the newly used prosthetic materials and their implication on antagonist teeth or prostheses, especially emphasizing the behavior of zirconia restorations. No current material can fulfill all of the requirements of an ideal restorative material, considering esthetic, mechanical and economic demands. Material as well as patient factors are implemented. Several factors will be raised. Patient selection and controlling wear factors are essential. Careful tooth preparation, adequate core support of veneering porcelain, proper occlusal adjustment, and careful cementation technique will enhance success and longevity rates Ceramic material has been shown to destroy enamel, whereas Gold is reported to be kind to antagonist. Machined ceramic is the less abrasive than condensable one. Lack of a sound standard and wear incidence on the opposing teeth, limit the use of monolithic zirconia crowns. Available data shows low enamel wear when opposed to zirconia. The zirconia fine uniform structure allows a mirror polishing. Concerns remain regarding the structural stability of zirconium dioxide ceramics when exposed to the oral environment. Compared to metal-ceramic restorations, lower loads accumulation initiated porcelain veneer damage and failure in the case of zirconia.