A veneer is porcelain that is bonded to the front of the tooth.  Veneers are used to change the shape/color/contour of a tooth.  They do not require as much tooth reduction as a full coverage crown. Veneers are case dependent and certain criteria must be met for long term success. If a patient is a candidate for veneers, it is highly recommended that the patient wear an occlusal orthotic splint at night to protect the porcelain. It is also important to maintain excellent home care to prevent decay around the veneers.