A crown is like a porcelain helmet or cap for your tooth. We usually recommend crowns to help strengthen a tooth with a large filling when there isn’t enough tooth structure remaining to hold the filling. Crowns can also be used to attach bridges, protect a weak tooth from breaking, or restore one that’s already broken. A crown is a good way to cover teeth that are discolored or badly shaped. Crowns are also used to cover dental implants. There are many materials available from which crowns could be made. Crowns often look much better than natural teeth because of the skill of the lab technician who makes them and the beautiful, natural looking materials they use.