title: Unusual maxillary second premolar morphology: a case report.
abstract: This case report presents the relatively uncommon occurrence of a maxillary second premolar with 3 root canals. The possibility of additional root canals should be considered even in teeth with a low frequency of abnormal root canal anatomy. Sound knowledge of root canal anatomy, critical interpretation of radiographs, and high-magnification examination are essential elements of success in complicated root canal therapy.
authors.affiliation: Conservative Dentistry, Faculty of Dentistry, University of Hong Kong, Hong Kong. dannylow@scientist.com
authors.forename: D
authors.initials: D
authors.lastname: Low
mesh_terms: D001641:Bicuspid / Q000002:abnormalities*; D003442:Crowns; D003786:Dental Pulp Cavity / Q000002:abnormalities*; D003790:Dental Pulp Necrosis / Q000628:therapy; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008437:Maxilla; D008875:Middle Aged; D010485:Periapical Periodontitis / Q000628:therapy; D011176:Post and Core Technique; D012390:Root Canal Therapy; D016896:Treatment Outcome