Crowns are incredibly strong due to the fact that they are created by the finest materials. This protects and strengthens the remaining tooth structure. In the hands of a skilled dentist, and with the convenience of in-office milling machines, a crown will fit almost perfectly onto the prepared surface of the tooth, reducing the size of the seam between the crown and the tooth. This helps keep decay from eventually occurring under the crown.

Crowns should be placed before the tooth is so decayed or cracked to the extent that it may fracture. This can often help prevent the expense of root canal therapy in the future. It can also prevent the possibility that a fractured tooth may need to be removed, requiring the expense of a bridge or implant to replace the missing tooth.