title: Mandibular molar with three distal root canals.
authors.forename: L E
authors.initials: LE
authors.lastname: Quackenbush
mesh_terms: D000293:Adolescent; D003786:Dental Pulp Cavity / Q000002:abnormalities*; D006801:Humans; D008297:Male; D008963:Molar / Q000002:abnormalities*