title: Mandibular premolars with more than one root canal in different race groups.
authors.forename: M
authors.initials: M
authors.lastname: Trope
authors.forename: L
authors.initials: L
authors.lastname: Elfenbein
authors.forename: L
authors.initials: L
authors.lastname: Tronstad
mesh_terms: D044466:Asian People; D001641:Bicuspid / Q000002:abnormalities*; D003786:Dental Pulp Cavity / Q000002:abnormalities*; D006801:Humans; D008334:Mandible; D044465:White People