Dental crowns are covers, or caps, that go over a single tooth. They are used to restore the shape, size and function of a tooth that has too much decay to be fixed with a dental filling. Dental bridges are meant to fill in a gap between teeth caused by a missing tooth. Here, two or more dental crowns are used to fill in the gap, which is held in place by adjacent teeth.
Unlike removable devices such as dentures, crowns and bridges are placed over your real teeth and are not removed.