2021 Volume 64 Issue 5 Pages 364-370
Introduction: The goal of endodontic treatment is to clean the root canal system as thoroughly as possible and to fill in all its dimensions. The main causes of endodontic failure are thought to be incomplete root canal obturation and untreated root canals. We report a rare case of five root canals in a maxillary first molar.
Case report: A 23-year-old Japanese male was referred for root canal treatment of the maxillary left first molar. A pretreatment radiograph and cone-beam computed tomography (CBCT) were taken, and two root orifices were observed in the mesiobuccal root. In addition, root canal treatment was performed under dental microscope observation. The anatomy of the first maxillary molar was determined as follows: two canals in the mesiobuccal root, one canal in the distobuccal root and two separate canals in the palatal root with separate foramina. After cleaning and shaping of the second mesiobuccal canal and two separate canals in the palatal root, these canals were obturated by the lateral condensation method with gutta-percha and sealer.
Results: Five years after treatment, the prognosis has been favorable, and no problem was found radiologically.
Conclusion: Cone-beam computed tomography and a dental microscope seem to be useful for diagnosis and treatment in endodontic therapy.
