Root canal treatment of maxillary second premolar with two roots and three canals: Two case reports

[摘要] The roots and canals of maxillary second premolar have different typical anatomical features, as well as a number of anatomical variations and extra canals. The present cases describe the successful endodontic therapy of two maxillary second premolars with three canals of healthy individuals, with the help of cone-beam computed tomography and dental operating microscope. The first case was diagnosed as symptomatic irreversible pulpitis with asymptomatic apical periodontitis, and the second case was diagnosed as necrotic pulp with normal periapical area. Follow-up visits reported no symptoms of both patients. The awareness toward atypical anatomy can be a critical factor in determining the success of endodontic treatment.

[学科分类] 口腔科学

[关键词] Maxillary second premolar;operating dental microscope;root canal morphology;root canal treatment;Vertucci's classification