Crowns are used to cover a tooth to help restore it to its normal shape and size
Crowns 
are a protective covering cemented onto your tooth. A crown may be recommended for a tooth has a large filling a root canal or a fracture. A bridge is simple 3 or more crowns linked. Bridges help to replace missing teeth, keeps teeth from drifting out of position and improves aesthetics.
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.
