A dental crown may be needed in the following situations:

• To protect a weak tooth (for instance, from decay) from breaking or to hold together parts of a cracked tooth
• To restore an already broken tooth or a tooth that has been severely worn down
• To cover and support a tooth with a large filling when there isn't a lot of tooth left
• To hold a dental bridge in place
• To cover misshapen or severely discolored teeth
• To cover a dental implant
• To make a cosmetic modification