Non surgical endodontic retreatment of immature permanent anterior teeth with iatrogenic overextended filling: A case report.

The completion of root development and closure of the apex occurs up to 3 years after eruption of the permanent tooth. The treatment of pulpal injury during this period provides a significant challenge for the clinician. Conventional endodontic treatment in a non-vital tooth will result in overfilling of the obturating material as there is no apical stop for the obturating material. Hence knowledge of the biological process of root development is must to avoid endodontic failure. Here we present a case report where nonsurgical endodontic retreatment was successfully done to remove the overextended gutta-percha from immature permanent teeth. Apexification was carried out by placing an apical plug of MTA. This paper even throws light on causes of endodontic failures, option available to retrieve the old filling material and the significance of preoperative radiograph in establishing the root condition before carrying out any endodontic procedure.