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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:
Margin: This is the edge of the crown that meets the prepared surface of the tooth. This needs to be smooth with no gaps or ledges. Cusps: These are the raised or pointy parts of a crown that are the primary tools for tearing and chewing food. When a cusp has been damaged from a cavity or fracture, the tooth needs a crown to prevent further damage.