Approximately 0.5 – 0.8 mm of tooth enamel is removed to achieve better bond strength and retention for veneers. This may vary according to the number of teeth, type of veneer and tooth anatomy.
A full veneer crown covers all the coronal tooth surfaces i.e. mesial, labial, distal. lingual and occlusal. About 1 – 1.5 mm is removed from all the tooth surfaces in this case.
Porcelain Laminate Veneer comprises of ultra-thin laminate layer that covers only the surface of the tooth. Incisal edge preparation requires reduction by 0.5 – 1 mm.