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A crown is a cover or âcapâ your dentist can put on a tooth. The crown restores the tooth to its normal shape, size and function. The purpose of a crown is to make the tooth stronger or improve the way it looks. You may need a crown if you:
The top part of the tooth is the crown. This is the part that is visible in your mouth. The bottom part of the tooth is the root. A tooth is composed of the outer layer of the crown called enamel, the middle layer called dentin, and the inside layer called the pulp. The pulp contains the nerves and blood vessels for the tooth. The outer layer of the root is the called the cementum.