With advanced & surprisingly comfortable endodontic therapy, you have an alternative to tooth removal, which will allow you to retain full use of your natural teeth. Endodontic therapy involves the removal of tissue from inside the tooth that has been damaged by trauma or infected by decay. After the pulp is removed, the pulp chamber & root canal system is cleaned, disinfected & sealed. Once a root canal is completed, two other procedures are generally needed to complete the restoration of the tooth. These are done by the general dentist.