Porcelain veneers are strong, custom-formed, natural-looking covers that are bonded to the surface of teeth. They look just like perfectly healthy and natural teeth. Veneers are often used to repair chipped, decayed or stained teeth and to reshape teeth and close gaps. Veneers are sometimes used instead of crowns for patients looking for a simple cosmetic restoration. To prepare the tooth, a minimal amount of enamel is ground down to accommodate the veneer. This procedure is minimally invasive, even less so than a typical filling.