The advantages of porcelain veneers cosmetic dentistry are as follows: first, beautiful color, better and more realistic imitation of the morphological structure of natural teeth and the surface characteristics of natural teeth; second, the tooth preparation is very conservative, is the basis of minimally invasive restorations, conducive to the preservation of the vitality of the pulp; third, after the hydrofluoric acid treatment of porcelain veneers, its bonding strength is very good, stronger than other systems of porcelain veneers bonding strength; fourth Fifth, its color is very stable, compared to resin veneers it is less likely to produce staining. In short, the restorative effect of porcelain veneers can be comparable to the patient’s natural teeth.