These are restorations to repair a severely broken tooth by covering all or most of the tooth after removing old fillings, fractured tooth structure and all decay. The restoration material is made of gold, porcelain, composites, or even stainless steel. Dentists refer to all of these restorations as “crowns.” However, patients often refer to the tooth-colored ones as “caps” and the gold or stainless steel ones as “crowns.”