A crown, or dental cap, is a type of dental restoration which completely caps or encircles a tooth or dental implant. A crown may be needed when a large cavity threatens the health of a tooth.
They are typically bonded to the tooth by dental cement. Crowns can be made from many materials, which are usually fabricated using indirect methods.
Crowns are used to improve the strength or appearance of teeth and to halt deterioration.
A bridge is a fixed dental restoration used to replace one or more missing teeth by joining an artificial tooth definitively to adjacent teeth or dental implants