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

Bibliography: p. 148-158.

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 reestablish 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 clinical performance (in terms of fracture eand color change for two different preparation design of laminate veneers conventional and modified gull wing Twenty-fourceramic laminate veneers were fabricated for maxillary anterior teeth. The patients were divided into two groups according to the prepration designgroup 1(control group) conventional preparation laminate veneers and group 2(intervention group) modified gull wing prepration. Standardized the same preparation with butt joint design and chamfer finish line located supra gingival were performed for all the teeth. The operator followed the five phases of laminate veneers fabrication: diagnosis, preparation design, provisionalization, construction of the material and cementation.The fabrication of the veneers was performed using IPs impress 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