Root canal treatment, also known as endodontic therapy, is an important dental procedure that is used to remove infection from with the root system.

Root canal treatment (also called endodontics) is needed when the blood or nerve supply of the tooth (known as the pulp) is infected through decay or injury.

If the pulp becomes infected, the infection may spread through the root canal system of the tooth. This may eventually lead to an abscess.

If root canal treatment (RCT) is not carried out, the infection will spread and the tooth may need to be taken out.

The aim of the treatment is to numb the tooth using local anaesthetic and remove all infection from the root canal. The root is then cleaned and filled to prevent any further infection.

In the past, a root filled tooth would often darken after treatment. However, with modern techniques this does not usually happen. If there is any discolouration, there are several treatments available to restore the natural appearance.