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A crown is a cover or âcapâ your dentist can put on a tooth. The crown restores the tooth to its normal shape, size and function. The purpose of a crown is to make the tooth stronger or improve the way it looks. You may need a crown if you:
According to WedMd.com, a dental crown can be used to: 1  Protect a weak tooth. 2  Restore a broken tooth. 3  Support a tooth with a large filling. 4  Hold a dental bridge in place. 5  Cover misshapen or discolored teeth. 6  Cover an implant. 7  Improve the appearance of a tooth.