Dental Crowns and Bridgework
A dental crown is a custom-made, tooth-shaped “cap” that is placed over a tooth — to cover the tooth to restore its shape and size, strength, and improve its appearance. The crown, when cemented into place, fully encase the entire visible portion of a tooth that lies at and above the gum line.
The most common reason for needing a crown is when large metal fillings end up cracking the tooth. The other common reasons for requiring a crown is to replace old leaking crowns and injury.
Dental bridges literally bridge the gap created by one or more missing teeth. A bridge is made up of two or more crowns for the teeth on either side of the gap — these two or more anchoring teeth are called abutment teeth — and a false tooth/teeth in between. … Dental bridges are supported by natural teeth or implants.