Predictability of Endodontic Treatment in Tooth with Extensive Lesion: Clinical Case Study

The pulp tissue and the periodontal ligament are closely linked through the apical foramen, lateral canals, dentinal tubules, inter-conducts, and apical deltas, allowing the exchange of agents between them. Contamination of root canals can lead to injury in the furcation region and endodontic treatment can promote disinfection of the dental element and enable the healing process. The aim of this study was to evaluate, through a case report, the predictability of endodontic treatment in a tooth with extensive damage. A patient was attended who had the element 36 necrotic, asymptomatic and with a furcation lesion, confirmed in the initial radiography. In the first session, anesthesia, access surgery, absolute isolation, irrigation with 2.5% sodium hypochlorite, odontometry, instrumentation with Logic rotary files at working length, drying and insertion of intracanal medication (calcium hydroxide) were performed. In the second session (after 15 days), the intracanal medication was removed, the distal root canals were filled using thermoplastified technique and the mesial ones were filled with added mineral trioxide. During the proservations period, crown/radicular fracture of the dental element and painful symptoms were observed. It is possible to conclude with this clinical case that even using biostimulating materials such as aggregated mineral trioxide, the endodontic treatment was not successful.