title: Maxillary first molar with six canals.
authors.forename: J L
authors.initials: JL
authors.lastname: Bond
authors.forename: G
authors.initials: G
authors.lastname: Hartwell
authors.forename: F R
authors.initials: FR
authors.lastname: Portell
mesh_terms: D000328:Adult; D003786:Dental Pulp Cavity / Q000002:abnormalities*; D005260:Female; D006801:Humans; D008437:Maxilla; D008963:Molar / Q000002:abnormalities