Abstract
The most esthetic way in restorative treatment is unanimously to use feldspathic ceramic material with enamel-like optical property (ie. porcelain laminate veneer), when the restoring tooth has no matter of its color and redisual volume.
Recent development in adhesive technique dramatically changed the preparation form, it makes difficulty in applying the conventional cavity classification.
Dr. Magne described that standard feldspathic material would be unproblematically placed up to 5.5mm without the residual tooth support, that means, there is less situation require full coverage restoration than have ever been previously thought. Considering that Japanese has an average of 11.7mm crown length, ≥50% loss of the coronal part and an abutment tooth are viewed as indications for the treatment.
The purpose of this text is to consider the function of the indication-extending porcelain laminate veneer, demonstrating clinical cases.