If you’ve suffered permanent damage to the structure of a tooth, you may need a crown to help restore the tooth back to its normal size and shape. A crown can restore function to your tooth and improve its overall appearance. Crowns are used to attach bridges, protect damaged teeth from breaking, or restore to health a tooth that has broken. Dental crowns make for a great way to conceal teeth that are badly discolored or misshapen. Crowns can also be used to cover a dental implant.