Porcelain Crowns

Protect and keep badly decayed or fractured teeth.

The Problem:

  •  Badly decayed teeth
  •  Fractured teeth
  •  Need to protect and strengthen teeth

The Solution:

A crown (often called a cap) covers the tooth and restores it to its original shape and size.

The procedure for creating a CEREC crown is as follows. Decay is removed and the tooth is shaped to fit a crown. The tooth is then prepared for scanning. Once scanned, a 3 dimensional image is created of the prepared tooth and a crown is designed on the CEREC machine to fit precisely over the tooth. Once designed, the crown is milled from a block of porcelain and this is cemented onto the tooth.

Alternatively a crown can be constructed in the lab. In this case the decay is removed and the tooth is shaped to fit a crown. A highly accurate impression or mould is made of the prepared surface. This mould is used to create a model of the tooth and this is then sent to a laboratory that will create a gold or porcelain (tooth coloured) crown. The crown is then cemented onto the prepared surface of the tooth.


Crowns are incredibly strong due to the fact that they are created from a solid block of porcelain with a CEREC machine or alternatively in a laboratory. This protects and strengthens the remaining tooth structure. In the hands of a skilled dentist, a crown will fit almost perfectly onto the prepared surface of the tooth, reducing the size of the seam between the crown and the tooth. This helps keep decay from eventually developing under the crown.

For the best result a crown should be placed before tooth decay advances to a degree where the tooth structure is at risk of fracture. This can often help prevent the expense and discomfort of root canal therapy in the future. It can also prevent the possibility that a fractured tooth may need to be removed, requiring the necessity of a bridge or implant to replace the missing tooth.


Crowns are excellent restorations and have few disadvantages. They are highly durable, but they will eventually need to be re-cemented or replaced due to normal wear.

Occasionally, a tooth may still need root canal therapy after being crowned. However, this indicates that the interior of the tooth was already infected and would have eventually needed root canal therapy anyway.


In the event that a tooth is so decayed or fractured that it needs to be removed, the best alternatives to a crown are bridges and implants that replace the missing tooth.

If you are suffering from any missing or severely damaged teeth, contact our dynamic team to arrange an appointment with one of our experienced dentists.

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