Dental veneers are thin, tooth-colored shells that are attached to the front surface of teeth to improve their appearance. They’re often made from porcelain or resin composite materials and are permanently bonded to your teeth. They look like natural teeth. Veneers can be used to treat a number of different cosmetic concerns, including chipped, broken, discolored, or smaller-than-average teeth, uneven spaces, or a gap between the upper front teeth.