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  Oct 10, 2018

Procedure for Dental Crowns

At least two dental visits are typically needed to prepare a tooth for a dental crown to be placed. The purpose of the first dental visit is to examine and prepare the tooth that is to be crowned and create an impression of the tooth so that the crown can be constructed. A temporary crown to protect the tooth is also usually placed during this visit.

In the second visit, which occurs once a dental laboratory has constructed the crown, the temporary crown can be removed and the permanent custom-made crown fixed in place.

Illustration of a dental crown procedure. Image Credit: BlueRingMedia / Shutterstock
Illustration of a dental crown procedure. Image Credit: BlueRingMedia / Shutterstock

First Visit: Investigation, Tooth Reshaping, Impression and Temporary Crown

During the first dental visit, an X-ray is usually taken of the tooth and jawbone to investigate for signs of decay and other factors that could increase the risk of infection or injury to the pulp of the tooth. For some patients, root canal treatment may be required prior to the placement of a crown on a tooth.

The tooth will need to be shaped to allow room for the crown to be placed; the extent of reshaping will depend on the type of crown being used. Metal-based crowns tend to be thinner and, therefore, require the removal of less structure of the tooth than porcelain crowns.  The top and sides of the tooth are filed down to shape the tooth as needed for the crown. Any tooth decay should also be treated during this step.

 

 

For some patients with severe decay or damage to the tooth, there may be insufficient tooth structure remaining to place the tooth. In this case, a filling material may be needed to build up the structure of the tooth so that the crown can later be put