A crown, also called a cap, is a hollow, artificial tooth used to cover a damaged or decayed tooth. The crown restores the tooth and protects it from further damage. Crowns can also be used to cover a discolored or misshapen tooth. A tooth fixed with a crown looks and works very much like a natural tooth.
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, or a broken tooth.
Crowns are strong and generally last for about 10 years or longer if you take good care of them. Brush and floss your crown just like you clean your natural teeth. Crowns may not be as strong as your natural teeth so try not to bite hard objects or use your teeth to open or cut things.