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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:
Three different types of dental crowns are available: 1  Porcelain â Typically used for the front teeth, these crowns perfectly mimic the look of your natural teeth. 2  Gold â Typically used for back teeth, this type of crown is especially strong and durable.