Crowns may also be the best treatment option if you have a cracked tooth, a very large filling which may fracture, or simply for esthetic reasons.
Crowns are not intended to be removed. They cover the entire tooth and are cemented on permanently. While crowns can be silver and gold, the majority of crowns are made of porcelain, which can match existing tooth shades, and molded to the same shape and size as the original tooth.
While crowns cover a single tooth, a bridge is a dental treatment used to replace one or more missing teeth.