Crowns are used to repair badly decayed, broken, discolored, or misaligned teeth. Crowns completely cover teeth, restoring them to their natural size, shape, and function. The location of the crown in the mouth usually dictates the type of material used. The tooth under the crown is reduced in size.
The crown will be permanently cemented over the reduced tooth. While you are waiting for the permanent crown to be fabricated, your dentist will provide you with a temporary one to wear. Crowns have a much longer life span than bonding, resist stains better, hold their color and resist chipping and cracking. Crowns, however, take longer to prepare than bonding and are not reversible.