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What is a crown?

A crown or cap is a cover that fits over a prepared or shaped tooth. It can be made of metal, porcelain or a combination of metal and porcelain.

What is it used for?

It is used on teeth that have been damaged, decayed, extensively filled or discoloured. The function of a crown is to support the remaining tooth structure and filling and to minimize the chances of it being damaged again. A crown can increase the strength as well as improve the aesthetics of the tooth.

How is it done?

The tooth is filed down just enough to compensate for the thickness of the crown. At this stage, the tooth resembles a post or peg. An impression of the tooth is made and sent to a dental laboratory where a plaster replica of the tooth is made and a crown fabricated to custom fit the plaster replica. At the time of the impression, a temporary acrylic crown is immediately made and cemented on the tooth. One to two weeks later, the crown is permanently cemented on the tooth. Occasionally, the dental laboratory may need to adjust the shape or colour before cementation if the aesthetics are critical. Fitting the crown over the tooth.

How long does it last?

We expect that a crown will last at least 15 years. This, however, is dependent on the original condition of the tooth; the client’s overall oral health; the quality of homecare; possible clenching or grinding; and even the types of foods that are routinely eaten.

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