What is a crown?

A crown, or dental cap, is a type of dental restoration which completely covers 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.