A crown is a tooth shaped restoration that can cap and encapsulate an entire tooth.
These can be used to protect a heavily filled tooth to restore and give it strength, prevent a weak tooth from fracturing
Crowns are also used to protect a tooth following root canal treatment
Crowns can also be used to enhance the appearance of stained or mis-shaped teeth.
Bridges are designed to replace single or multiple missing teeth. A bridge consists of a false tooth which is joined to an adjacent tooth/teeth usually with a crown on the adjacent tooth.
A bridge may be an appropriate alternative to a partial denture