What are Dental Crowns and Bridges?

Both dental crowns and bridges are cemented (non-removable) extra-coronal restorations that cover the outer surface of the tooth to reproduce the tooth’s natural shape and contour while allowing it to perform its function. While offering a very cosmetically appealing restoration their main function is to protect the tooth from further damage.

A crown, which entirely covers a damaged tooth, is used to strengthen the tooth, improve its appearance/shape and/or align the tooth. A crown is typically recommended to:
  1. The tooth (or teeth) to be crowned are reduced in size to allow proper fit and contour over the existing tooth.
  2. A shade is selected for the crown/bridge so as to match the existing teeth and provide a natural appearance.
  3. Once the tooth/teeth are prepared an impression is taken to provide an exact mould of the prepared tooth/teeth.
  4. A temporary restoration will be placed on the prepared tooth/teeth while the mould is sent to the laboratory where your permanent crown/bridge is fabricated.
  5. When the crown/bridge is ready, the temporary crown/bridge is removed and the permanent crown/bridge is permanently cemented into place over the prepared tooth/teeth.
What is the prognosis for a crown/bridge? A tooth that has a crown or bridge can last a lifetime. The most important step that is taken to ensure the longevity of a crown or bridge is good oral hygiene practice and regular dental check-ups.

A bridge is commonly recommended when one or more teeth are missing, in order to cover the span and restore the edentulous areas. Bridges are essentially crowns placed over the remaining teeth (called abutments) which act like anchors for the false tooth (pontic) filling the space where the tooth was missing. Unlike dentures, which you take out daily, bridges are permanently cemented onto the existing teeth and can only be removed by a dentist.

What is the Prognosis for a Root Canal treated tooth?
  1. An opening is made typically through the back of a front tooth or through the crown of a posterior tooth to access the pulp chamber;
  2. Once the pulp chamber is accessed the diseased pulp is removed;
  3. Various methods are used to clean and shape the pulp chamber and root canal(s) in preparation for being filled;
  4. The pulp chambers and root canals are dried and permanently filled using a rubbery material called gutta-percha, which is inserted into each of the canals and is sealed into place
  5. A restoration is place to restore the tooth’s natural anatomy.


             

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