A dental crown is a type of dental restoration that completely covers a damaged or decayed tooth. It is designed to restore the tooth's shape, size, strength, and appearance. Crowns can be made from various materials, including porcelain, metal, or a combination of both, and are often used when a tooth has undergone a root canal or is severely worn down. The process of getting a dental crown typically involves two visits to the dentist. During the first visit, the tooth is prepared, and an impression is taken to create a custom crown. In the second visit, the crown is placed and cemented onto the tooth, providing protection and improving functionality.