Comparison of Two Types of Preparation for Laminate Veneer with Three Types of All-Ceramic Materials.

Objective:  The objective of this study was to compare types of veneer preparations and their combination with three materials.

Materials And Methods:  Two finite element models were specially prepared used representing window and wrap around preparation for veneers. The "central incisor" tooth geometry was acquired using a laser scanner, and then its surface was adjusted to form a solid model prior to the removal of each preparation separately.