CROWNS AND

BRIDGES.

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Bridges

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Bridges are natural-looking dental appliances that can replace a section of missing teeth. Because they are custom-made, bridges are barely noticeable and can restore the natural contour of teeth as well as the proper bite relationship between upper and lower teeth.

Bridges are sometimes referred to as fixed partial dentures, because they are semi-permanent and are bonded to existing teeth or implants. There are several types of fixed dental bridges (cannot be removed), including conventional fixed bridges, cantilever bridges and resin-bonded bridges.  Unlike a removable bridge, which you can take out and clean, only your dentist can remove a fixed bridge.

Porcelain, gold alloys or combinations of materials are usually used to make bridge appliances. Appliances called implant bridges are attached to an area below the gum tissue, or the bone.

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Crowns

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Crowns are synthetic caps, usually made of a material like porcelain, placed on the top of a tooth.

Crowns are typically used to restore a tooth's function and appearance following a restorative procedure such as a root canal. When decay in a tooth has become so advanced that large portions of the tooth must be removed, crowns are often used to restore the tooth.

Crowns are also used to attach bridges, cover implants, prevent a cracked tooth from becoming worse, or when an existing filling is in jeopardy of becoming loose or dislocated. Crowns also serve an aesthetic use, and are applied when a discoloured or stained tooth needs to be restored to its natural appearance.

Crown Procedures [see Cerec Crowns]

A tooth must usually be reduced in size to accommodate a crown. An impression or digital cerec scan is then made from the existing tooth and sent to a special laboratory or in-house CADCAM milling chamber, which manufactures a custom-designed crown. In some cases, a temporary crown is applied until the permanent crown is ready. Permanent crowns are cemented in place.

Caring for your Crowns

With proper care, a good quality crown could last up to eight years or longer. It is very important to floss in the area of the crown to avoid excess plaque or collection of debris around the restoration.

Certain behaviours such as jaw clenching or teeth grinding significantly shorten the life of a crown. Moreover, eating brittle foods, ice or hard lollies can compromise the adhesion of the crown, or even damage the crown.

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