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Crowns, Bridges, Dentures

Crowns:
A crown is a restoration that covers, or “caps,” a tooth to restore it to its normal shape and size, strengthening and improving the appearance of a tooth. Crowns are necessary when a tooth is generally broken down and fillings won’t solve the problem. If a tooth is cracked, a crown holds the tooth together to seal the cracks so the damage doesn’t get worse. Crowns are also used to restore a tooth when there isn’t enough of the tooth remaining to provide support for a large filling, attach a bridge, protect weak teeth from fracturing, restore fractured teeth or cover badly shaped or discolored teeth.

To prepare the tooth for a crown, it is reduced so the crown can fit over it. An impression of the teeth and gums is made and sent to the lab for the crown fabrication. A temporary crown is fitted over the tooth until the permanent crown is made. On the next visit, the dentist removes the temporary crown and cements the permanent crown onto the tooth.

Bridges:
The purpose of a bridge is to replace one or more missing teeth and look and function naturally. It is permanently anchored to the teeth on either side of the space created by the missing teeth. When a lost tooth is replaced with bridgework, the teeth on either side are prepared as crowns to serve as anchors or “abutments” for the bridge. Crowns and bridges are most often made from ceramic tooth colored porcelain on the outside, fused to gold alloy underneath.

Dentures:
A denture is a removable replacement for missing teeth and the tissues connected to those teeth. It is made of acrylic plastic and sometimes porcelain and metal materials. A denture closely resembles natural gum tissue and teeth.

Complete dentures replace all of the teeth, while partial dentures fill in the spaces created by missing teeth and prevent other teeth from shifting position. Complete dentures are “immediate” or “conventional.” An immediate denture is a complete denture or partial denture that is inserted on the same day, immediately following the removal of the natural teeth. The immediate denture acts as a Band-Aid to protect the tissues and reduce bleeding after tooth extraction. The conventional denture is ready for placement in the mouth about 8 to 12 weeks after the teeth have been removed and the gum tissue has healed.

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