Crowns can be made of different substances such as resin, stainless steel, gold, and ceramic, but the most popular is porcelain. They are used to protect damaged, broken, or weak teeth, or to hold a dental bridge securely in your mouth. They can be placed over misshaped or discolored teeth to make your smile look more aesthetically pleasing.
Porcelain crowns can be fused with metal to your other teeth or cemented onto an existing tooth without metal. Those with metal are stronger than without, but the porcelain without metal is more natural looking. The dentist can even match it to the shade of the rest of your teeth.