Crowns cover the tooth like a helmet to protect them from decay and breakage. Crowns are indicated when more than 50% of a tooth has been lost or after a root canal on a back tooth. Crowns may also be indicated if the corner of a tooth has broken off. Crown can be made our of gold, metal layered with porcelain, or all porcelain.
Bridges are used to replace a missing tooth when a dental implant is contraindicated or not wanted. Bridges use the teeth adjacent to the space to support the bridge. A bridge is made of 3 crowns fused together.