Crowns are a way to improve your tooth’s shape/appearance or to strengthen a tooth. Crowns are most often used for teeth that are broken, worn, or have portions destroyed by decay.
A crown is a “cap” cemented onto an existing tooth and usually covers the portion of your tooth above the gum line. In effect, the crown becomes your tooth’s new outer surface. Crowns can be made of porcelain, metal, or both.
Crowns or onlays (partial crowns) are needed when there is insufficient tooth strength left to hold a filling. Unlike fillings, which apply the restorative material directly into your mouth, a crown is fabricated away from your mouth. It is created in a lab using your unique tooth impression, which allows a dental laboratory technician to examine all aspects of your bite and jaw movements. Your crown is then sculpted just for you so that your bite and jaw movements function normally once the crown is placed.