System B and Obtura III
After patency restoration, careful treatment and root canal disinfection, the next phase of the root treatment (endodontic treatment) consists of closing tightly the opening of the canal along its entire length to its physiological opening in order to prevent bacteria from spreading from the tooth cavity to the tissues around the tip. Filling the root canals with gutta percha by using B system and Obtura III system gives good control during filling processes, enables to effectively and carefully fill the space of root canals, which often are irregular.