A Crown is a dental restoration that covers up or caps a tooth. It is cemented into place and cannot be taken out. Dental crowns are an effective long-term treatment options for teeth that are heavily restored or have had root canal therapy treatment. The tooth is first prepared, to allow acceptance of a custom-made crown that is then cemented onto the tooth. This helps rebuild the shape and restore function and strength to the tooth. Dental crowns can be made with a variety of materials and depending on your case, your dentist will help you decide the best type of crown for you.