A RARE CASE OF THREE ROOTED MAXILLARY SECOND PREMOLAR: DIAGNOSIS AND TREATMENT

Abstract

Although the possibility of three canals in maxillary second premolars is quite small, it must be taken into consideration in clinical and radiographic evaluations during endodontic treatment. This case report describes an unusual morphology of the three canals and two separated roots in maxillary second premolar in a Brazilian patient. A thirty-two year old male patient was referred to our clinic complaining of sensitivity to cold and pain at night in the second right upper premolar. The clinical examination revealed extensive distal caries. Percussion and cold tests were positive. The radiographic examination showed the presence of two roots. The diagnosis was an irreversible pulpitis. Root inspection revealed the existence of a third vestibular-palatal canal. The endodontic treatment was completed in a single session using manually serial instrumentation technique under sodium hypochlorite irrigation. Canals were obturated with thermo-plasticized gutta-percha and sealed with zinc oxide and eugenol by lateral condensation technique. The presence of extra roots as a possible feature in maxillary second premolar should be considered during endodontic treatment. The instrumentation presented in this case report and the diagnosis methods were effective in successful three rooted second premolar treatment.