A veneer is a thin porcelain covering placed over the facing of a tooth to enhance its color and shape. When veneers are placed on adjacent teeth, crowding and malalignment can be corrected or erased. Because porcelain veneers are carefully sculpted and shaped, many people feel they have gone through instant orthodontics. Porcelain veneers have a longevity of at least ten to 15 years due to the strength of the porcelain and the extreme thinness of the cement. If patients are interested in bleaching or tooth whitening, this should be achieved prior to veneering, as restorations will not whiten.