title: [Presence of a 4th canal in the 1st upper molars. A comparative assessment of the literature].
authors.forename: R
authors.initials: R
authors.lastname: Marini
authors.forename: R
authors.initials: R
authors.lastname: Domini
authors.forename: E
authors.initials: E
authors.lastname: Berutti
mesh_terms: D003786:Dental Pulp Cavity / Q000002:abnormalities* / Q000033:anatomy & histology; D004708:Endodontics; D006801:Humans; D008437:Maxilla; D008963:Molar / Q000002:abnormalities* / Q000033:anatomy & histology
vernacular_title: La presenza del 4 degrees canale nei primi molari superiori. Valutazione comparativa della letteratura.