The aim of the treatment is to remove all infection from the root canal system. The root is then cleaned and filled to prevent any further infection. Root canal treatment is a skilled and time-consuming procedure. Most courses of treatment will involve two or more visits with your dentist. At the first appointment, the infected pulp is removed, and any abscesses can be drained. The root canal is then cleaned and shaped ready for the filling. A temporary filling is put in along with a disinfectant to help clean the tooth and is left to settle. The tooth is checked at a later visit and when all the infection has cleared, the tooth is permanently filled.