ABSTRACT
The failure of root canal treatment depends on various variables. Some of these include inadequate filling of the canal, missing canals, and iatrogenic errors. A poorly performed root canal procedure can cause significant lesions and, excruciating pain in the apical region over a prolonged period. A 31-year-old male patient reported to the Trisakti University Hospital with complaints of discomfort when biting. According to the patient, he underwent root canal treatment about 6 years earlier. A clinical intraoral examination showed glass ionomer cement restoration on tooth 14. The tooth showed a negative response to the pulp vitality test and had a positive response to percussion. The radiographic examination showed no periapical lesion accompanied by root canal treatment with underfilling obturation. The diagnosis of tooth 14 was previously treated. Non-surgical retreatment was completed with a rotary instrument and solvent to remove gutta-percha. Obturation was carried out using gutta-percha and resin-based sealer, and a direct composite restoration was performed.
