Crown is the visible white part of the teeth and is covered with enamel. The crown gets damaged because of cavities and other problems. Your doctor might reduce the actual surface area of the tooth by removing a part of it and will then place an artificial crown made up of the desired material on it, the artificial crown is help in place with the help of medical grade cements or glue. The process is helpful in saving the uncerlying natural tooth and to prevent extraction. Crowns can be placed on the tooth after performing root canal treatment as well.