Dental Crowns
in Rock Hill, SC

In dentistry, crowns and bridges refers to the restoration of natural teeth that have been damaged, decayed or lost. A crown can be made to restore an individual tooth damaged by decay or fracture back to it’s original form and function, while a bridge is used to replace one or more missing teeth. These restorations are cemented onto the teeth and are referred to as “fixed” dentistry as opposed to a restoration of missing teeth with a removable appliance or partial denture.

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Both procedures require the use of a local anesthetic and the grinding or preparation of the teeth, with a crown, the damaged tooth, with a bridge, the adjacent teeth. A badly decayed or broken tooth may require that the tooth be “built up” with a special restorative material during the preparation of the teeth. With a fixed bridge, the prosthesis will span the area of a missing tooth, known as a pontic, while the two or more adjacent supporting teeth are called abutments. An impression is taken of the prepared area, and a temporary crown or bridge is placed.

Some slight discomfort is possible after the teeth are prepared. Generally local aneasthetic will eliminate the discomfort. Warm salt water rinses can also speed the recovery of the gums in the area. The permanent crown will fit considerably better than the temporary crown, so the temporary crown gives little indication of how the final crown will fit or feel. It is important that the temporary crown or bridge stay in place until the final crown or bridge is placed. If the temporary should come off early, please call at the clinic.

After about two weeks, the crown or bridge is ready to be fitted, adjusted, and cemented in place.

Crowns and bridges can be made of several materials(gold/metal/ceramic i.e. porcelain ). Full gold crowns are normally done on the very last teeth in the mouth where strength is most important and appearance is less important. Porcelain fused to metal offers most of the strength of full gold, but the esthetics of a tooth colored crown. A thin layer of “High Noble Metal” is made to exactly fit over the prepared tooth model, then porcelain is layered and fired in a ceramic oven at over 2000 degrees, till the desired shape and size is achieved.

Front teeth can be restored with porcelain fused to gold, but sometimes an all porcelain crown is used. Dr’s Espinal & Willis uses castable porcelain that is stronger and more life-like than conventional porcelains. With porcelain fused to gold and all porcelain Empress crowns, the color of the porcelain is shaded to match the existing teeth, or in some cases, lighter to cosmetically brighten the smile.

Some of the indications for a crown are:

  • A previously filled tooth where there now exists more filling than tooth. The existing tooth structure becomes weakened and can no longer support the filling.
  • Extensive damage by decay.
  • Discolorations and compromised esthetics.
  • Fractures
  • Root canal – After root canal, teeth tend to become brittle and are more apt to fracture. These teeth need to be protected by a crown.

Bridges are recommended to replace one or two missing teeth. They require healthy adjacent teeth to support the replacement teeth. Missing more than one or two teeth is generally better replaced with removable partials.