CROWNS

Crowns are full coverage restorations used to cover a tooth that is likely to break or is too broken down to be restored with a filling. They are most commonly done after root canal treatment or when a large filling wears out. The larger the hole made by a cavity that has to be treated, the more likely a crown will be needed. A tooth is more likely to break even after a filling is put in a large cavity. Remember that the jaw muscles are the strongest in the human body. Teeth are subjected to tremendous pressure. Crowns ride over the weakened tooth, providing strength and protecting the tooth against breakage. A broken or cracked tooth is a much more severe matter and much more challenging to treat. Crowns prevent this, as well as make for a friendly smile.

It takes two appointments to restore a tooth with a crown. At first, any decay is removed from the tooth and is shaped to accept the crown. Then an impression is made of the tooth for use in fabricating a crown. Between the two visits, the crown is made, usually of high-strength porcelain over gold alloy, all ceramic material, or gold. During this time, a temporary crown is worn. In the second visit, this temporary is removed. Then the permanent crown is adjusted as needed and then cemented in place.