Root canal treatment (also called endodontic treatment) is the process where a dentist removes the pulp (the blood and nerve supply) from an infected tooth and replaces it with dental filling material.
The aim of root canal treatment is to permanently eradicate the infection in the root canal and surrounding bone and save the tooth.
Root treatment is one of the most delicate and skilled procedures in dentistry. It is time consuming and can involve two or three visits per tooth.
Root filled teeth often last for many years. It is, however, very difficult for a dentist to completely eradicate the infection inside the tooth. Root filled teeth are also weakened by the decay or restorations that caused the infection in the first place. As a result, it is impossible to guarantee that the tooth will survive for a particular length of time.
Even if the infection comes back it is often possible to repeat the root canal treatment (re – root treatment) to get rid of the infection again and avoid extracting the tooth. However re root treatments are less successful than root treatments.