If your tooth is damaged but not lost, a crown can be used to restore its shape, appearance and function. You may need a crown if you have a root canal, a large filling in a tooth, large decay or a broken tooth.
A crown, also called a cap, is a hollow, artificial tooth used to cover the damaged or decayed tooth. The crown protects the tooth from further damage.
Crowns can also be used for aesthetic reasons to cover a discoloured or misshapen tooth.