Crowns cover a tooth to restore normal function and appearance. They may be made entirely of metal, or a combination of porcelain and metal, or entirely of tooth-colored material supporting porcelain. Crowns are indicated for teeth with compromised remaining tooth structure resulting from having very large fillings, root canal treatment, fractures, wear due to grinding, and developmental anomalies.
Fixed partial dentures have been used with high success for many years to replace a missing tooth or teeth. Teeth on both sides of the space left by the missing tooth are prepared for crowns called retainers. The missing tooth is replaced by a pontic that is connected to the retainers. Fixed partial dentures are cemented to the prepared teeth and cannot be removed by the patient.