Root canal treatment (or endodontics) involves the removal of damaged or infected pulp from the inner part of the tooth to prevent any infection from spreading and to help save the tooth from extraction.
Pulp can be damaged for a number of reasons including extensive decay, a deep filling, significant tooth wear or trauma. You may not realise you have pulp damage as there could be a complete lack of symptoms. However, pain, sensitivity, gum tenderness or discolouration of the affected tooth could indicate a problem.
Treatment may require a number of appointments and will depend on the type of tooth being treated. Front teeth are quicker to treat as they have just one root canal, but back teeth will take a little longer as they can have up to four.