A crown is a tooth-shape covering for a tooth that has damage or decay that cannot be restored by a traditional bonded filling. Crowns provide the support needed for the weakened tooth in order for the tooth to be in proper form and function. Crowns are made of ceramic or porcelain material, ceramic with a high nobel metal substructure, or a full or partial gold.
Dental bridges are created to fill spaces created by missing teeth. A bridge often consists of two crowns that fit on the adjacent teeth and an artificial tooth that fits perfectly into the empty space between. The bridge creates a uniform row of natural-looking teeth. Bridges are a non-removable restoration and are composed of both metal and ceramic or porcelain materials.