title: Morphologic study of the maxillary molars. Part II: Internal anatomy.
abstract: The internal anatomy of three hundred and seventy (370) decalcified and cleared human maxillary molars was studied. Seventy-five percent of the first molars, 58% of the second molars and 68% of the third molars studied presented three (3) root canals and 25% of the first molars, 42% of the second molars and 32% of the third molars presented four (4) root canals. The authors observed that the incidence of two root canals in the mesiobuccal root was higher in second maxillary molars than in first maxillary molars.
authors.affiliation: Faculdade de Odontologia de Ribeirão Preto, Universidade de São Paulo, Brasil.
authors.forename: J D
authors.initials: JD
authors.lastname: Pécora
authors.forename: J B
authors.initials: JB
authors.lastname: Woelfel
authors.forename: M D
authors.initials: MD
authors.lastname: Sousa Neto
authors.forename: E P
authors.initials: EP
authors.lastname: Issa
mesh_terms: D003786:Dental Pulp Cavity / Q000033:anatomy & histology*; D006801:Humans; D008437:Maxilla; D008963:Molar / Q000033:anatomy & histology*; D014092:Tooth Root / Q000033:anatomy & histology*