A veneer is a thin, durable tooth shaped piece of porcelain that is bonded onto the front of a tooth. They are a less invasive alternative to crowns is certain situations. Veneers are mainly used for aesthetic reasons.
Possible reasons for a veneer include:
-crooked or crowded teeth
-stained or severely discolored teeth
-teeth that are too small or too large
-teeth with large spaces in between
-worn or severely chipped teeth