Maxillary first premolar with three roots: Case report
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Introduction: The maxillary first premolar may rarely present with three roots, two buccal and one palatal, demanding more attention during endodontic intervention. Objective: This paper reports the case of a maxillary first premolar with three roots and three root canals, highlighting the difficulties and special care during endodontic treatment. Methods: After initial radiography and coronal opening, the presence of three roots and three root canals was detected. The exploration of the canals was performed with #10 K-file and the root canal length was measured by means of radiographic technique, which made it possible to confirm the anatomical variation and to assure that the buccal canals were independent. The instrumentation was mixed, with K-type hand files, until #35 file, automatized with Pro- Taper® system (Dentsply). The filling of the canals was performed with the lateral compaction technique with sealer Sealer 26®. Conclusion: Professionals should always carefully consider the diagnostic radiograph and perform all steps of root canal treatment properly, so that possible changes can be detected, not compromising the success of treatment.