Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Prosthodontics

Ceramic laminate veneers show a successful esthetic and functional long- term service for their perfect color match, marginal integrity and mechanical properties. The minimum-thickness, ceramic laminate veneers are a conservative and esthetic alternative to re-establish the form, shape and color of anterior teeth. Mechanical behavior and marginal integrity are the major factors that affect the long- term prognosis of any restorations. This clinical study was done to evaluate the marginal integrity and post- operative sensitivity for e.max CAD veneers bonded with or without using Galla chinensis before bond application. Twenty four ceramic laminate veneers were fabricated for anterior teeth. The patients were divided into two groups according to the bonding technique Group A (control group) e.max CAD laminate veneers bonded with conventional technique. Group B (intervention group) e.max CAD laminate veneers bonded after application of Galla chinensis. Standardized preparation with butt joint design and chamfer finish line located supra gingival were performed for all the teeth. The fabrication of the veneers was performed using CAD/CAM (Vhf S1) machine, with software (Exocad). The veneers surfaces were treated and silanated according to the manufacture instruction of each ceramic and enamel surfaces were etched where total etch adhesive protocol was obeyed using BISCO. Survival rate in terms of (marginal adaptation and post-operative sensitivity) for both groups were evaluated according to united states public health services (USPHS) criteria

Issued also as CD