When a tooth's structure is compromised, a crown rebuilds the tooth to optimal shape and function. A crown can be metal, ceramic, or ceramic covering metal; it typically requires multiple appointments. To complete the process of getting a crown at the first appointment, your doctor will take an impression or mold to help make a temporary crown for your tooth. Next, the tooth is prepared to make room for the crown. Your doctor will take another impression of the prepared tooth and put in a temporary crown while your final restoration is being expertly constructed by a dental laboratory. At a subsequent appointment, your doctor will remove the temporary crown and replace it with the final restoration. Once completed, your tooth is now restored to ideal shape and function.