If the dental nerval tissue is no longer alive, the means of modern endodontic therapy are often successful in maintaining the function of the affected teeth for decades. Resulting restaurations may therefore be less expensive respectively prosthetic devices avoidable.
The root canals system is cleaned, disinfected and shaped, in most cases in multiple sessions. Finally the resulting cavity is filled to eliminate hideouts for bacteria.
If endodontic treatment is not successful, apical surgery can be performed to save the tooth. After the incision in the gum the root tip and the surrounding infective tissue is exposed and resected. After disinfection a small filling seals the root canal and the gum is placed back in position and sutured.