For cases where the internal soft tissues of the tooth have become infected, root canal treatment is necessary to deal with the infection and save the tooth. The treatment stops the infection in its tracks and protects your mouth from further infection. The soft tissues, known as the pulp, can become infected for a number of reasons. The most common reasons are decay, a deep filling or trauma to the tooth. Symptoms can include pain, increased sensitivity to temperature, discolouration, a metallic taste, gum tenderness or swelling.
Root canal therapy usually requires several appointments, but your dentist will be able to explain the treatment plan before it begins. The number will depend on which type of tooth is being treated. Between appointments, the tooth will be covered and temporarily restored.
Although root canal therapy has a reputation for being painful, the procedure should be no more uncomfortable than having a normal filling.