Crowns are a restorative procedure used to improve a tooth’s shape or to strengthen a tooth. A crown is a “cap” cemented onto an existing tooth that usually covers the portion of the tooth above the gum line. In effect, the crown becomes the tooth’s new outer surface. Crowns are needed when there is insufficient tooth strenghth remaining to hold a filling.
When a cavity gets really deep, close to the pulp of a tooth, or even into the pulp, the pulpal tissue becomes irritated and inflamed. A pulpotomy is when the inflamed pulp chamber, usually on a baby molar, is removed. The dentist will remove all the infected material in the pulp of the crown only, leaving the living tooth root intact. After a pulpotomy on a baby molar, the empty space will be filled with dental cement and a crown will be placed to restore the tooth.