Dental Post and Core

  • Post and Core

Dental Post and Core

Post and core treatment is recommended for teeth which are severely decayed or structurally damaged. After a root canal treatment, the post is positioned in the root of the tooth. It can be used to support a filling or to hold a crown. Some posts are ready made, whereas others are made in the laboratory especially to fit the tooth.

Recommended for

• Severe tooth decay
• During root canal treatment

Before dental post and core : Before post and core treatment, root canal treatment is performed and the dentist will determine which type of post and core should be used, in terms of using prefabricated (ready-made) or custom posts.

Post and Core

How is it performed : A prefabricated post is quicker to fit as there is no extra laboratory work needed and they come in various shapes and sizes. A cast post (or custom post) may be used in the cases where a prefabricated post is not suitable.

The laboratory-cast posts are usually made of carbon-fibre or stainless steel. This involves taking a mould of the inside of the canal, which is then sent to the dental lab so that a fitted post can be created. These usually include a core. Once the custom post and core is fitted into place, a mould can be taken in order to create a fitted crown.

The prefabricated post can be fitted directly after root canal treatment. When the root canal has been cleaned, the canal is filled with gutta percha, which is a filling material. Some of this material is filed down, removed and shaped in order to accommo- date space for the post. Once this has been placed, a core, or build up material is shaped around the post. With this in place, the crown can be attached on top of the post and core.

Materials : Core, or build up, is usually made from dental amalgam or composite. Posts are typically made of metal.

Anesthesia : Local anesthetic.

Procedure duration : The Dental Post and Core takes 1 to 3 hours.

The initial treatment where the post and build up is fitted takes around an hour. Other appointments are considerably shorter.


Post procedure care : Patients should avoid eating on the crown, following a post and core procedure. Certain foods, such as hard or chewy sweets, should be avoided as the crown could become loose.

Possible discomfort : Some minor discomfort to be expected after this procedure, but this can be easily controlled with normal painkillers.


Success rates : The procedure is successful in over 90% of cases.

Potential risks

• Tooth fracture
• Root fracture
• Root canal failure (it is difficult to repeat root canal treatment once the post is in place)
• Post coming out
• Post protruding through the side of the root (this is a particular risk if the root is curved)

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