title: Additional distal root in permanent mandibular first molars: report of a case.
abstract: The case of a patient with an additional distal root in each permanent mandibular first molar is reported. A thorough review of the dental literature failed to reveal any significant data concerning such cases because much of the literature is concerned with variation in root canal morphology rather than variations in root number. Inability to recognize these aberrations could lead to failure of endodontic treatment.
authors.affiliation: Department of Pedodontics and Preventive Dentistry, A.B. Shetty Memorial Institute of Dental Sciences, Mangalore, India.
authors.forename: N T
authors.initials: NT
authors.lastname: Prabhu
authors.forename: A K
authors.initials: AK
authors.lastname: Munshi
mesh_terms: D002648:Child; D005260:Female; D006801:Humans; D008334:Mandible; D008963:Molar / Q000002:abnormalities*; D012390:Root Canal Therapy; D014092:Tooth Root / Q000002:abnormalities*