Effect of using Different adhesion protocols on Bond strength and Color stability of Lithium di-silicate Ceramic veneers

Abstract

The demand for treating un-esthetic anterior teeth continues to grow. The available options to restore their esthetics include conservative treatments as bleaching, micro-abrasion and laminate veneers restorations. Nowadays, the laminate veneers became an important part of smile designing. The clinical success of the laminate veneers depends partly on the cementation procedure and type of the cement used. Resin based cements promote the required retention of the indirect partial coverage restoration to the remaining dental surface and seal tooth margin. Laminate veneers cementation is considered one of the most stressful situations the clinician faces, multiple steps required with optimal isolation conditions for a long time. In our study we have evaluated the cementation of porcelain veneers by more simplified technique using a self-adhesive resin cement (Rely XU200) which claimed by the manufacturer to have high color stability and strong durable bond. The combination of technique simplification and lower patient sensitivity provided by self-adhesive resin cements have attracted considerable interest from manufacturers and clinicians. The aim of this study was to evaluate the shear bond strength and color stability of a group of porcelain laminate veneers cemented by a self