title: Mandibular first molar with three distal root canals.
abstract: A right mandibular first molar requiring root canal treatment was found to have one mesial and two distal roots and a total of five canals. The mesial and distobuccal root had two separate canals; the distolingual root had one. This case demonstrates a rare anatomical configuration and supplements previous reports of the existence of such configurations in mandibular first molars.
authors: Department of Endodontics, Showa University School of Dentistry, 2-1-1 Kitasenzoku, Ohta-ku, Tokyo 145-8515, Japan. yukimura@senzoku.showa-u.ac.jp
authors: Y
authors: Y
authors: Kimura
authors: K
authors: K
authors: Matsumoto
mesh_terms: D000328:Adult; D003786:Dental Pulp Cavity / Q000002:abnormalities*; D005260:Female; D006801:Humans; D008334:Mandible; D008963:Molar / Q000002:abnormalities*; D014092:Tooth Root / Q000002:abnormalities*