Inside your tooth's hard outer shell is a nourishing pulp of blood vessels, lymph vessels and nerves. The root canals, which contain the pulp, extend to the bone. Deep tooth decay, or an injury, can cause serious damage and infection to the pulp's nerves and vessels. Root canal, or endodontic , treatment cleans out the infected pulp chamber and repairs the damage. The length of the root canals is determined.
Unhealthy pulp is removed.
Canals are filled and sealed. The tooth is sealed with a temporary filling. The materials used to fill your root canal will probably last you a lifetime, but eventually the filling or crown may need to be replaced.