Fracture Localisation of Porcelain Veneers with Different Preparation Designs.

Background: Porcelain veneers are permanent restorations that combine good aesthetic with functionality by minimal destructive techniques.

Aim: This study aimed to investigate the influence of the preparation designs on the fracture localisation.

Material And Methods: Three preparation designs of porcelain veneers fabricated by a method of laying on a fireproof abutment on maxillary central incisor were examined in this in vitro study-feather preparation, bevel preparation and incisal overlap - palatal chamfer.