Crowns are synthetic caps, usually made of a material like porcelain, placed on the top of a tooth. Crowns are typically used to restore a tooth’s function and appearance following a restorative procedure such as a root canal. When decay in a tooth has become so advanced that large portions of the tooth must be removed, crowns are often used to restore the tooth.
Bridges are similar to crowns in the material that they are made of, but are different in their use. Typically, bridges are used in circumstances where one or more teeth are missing. It can be cemented to a crown on either side of the affected tooth.