Dental crowns and bridges are used for restorative or cosmetic purposes. A crown is often used to cover a damaged tooth without actually removing it. The cap will be placed over an existing damaged tooth and cemented in place. On the other hand, a dental bridge fills in the missing space caused by one or more lost teeth. It’s an effective way of replacing a tooth that has been knocked out or damaged due to tooth decay or injury and cannot be fixed with crowns alone.