title: [Lower fourth molar: pathogenesis and treatment].
abstract: After having examined the many theories on the pathogenesis of molar polydontias, the paper describes a very interesting clinical case involving the lower 4th molar. The results suggest that the most reliable theories are those postulating either the hyperactivity of the epithelial tract or the proliferous production of enamel (in the broadest sense).
authors.forename: L
authors.initials: L
authors.lastname: Ungari
authors.forename: C
authors.initials: C
authors.lastname: Secondari
authors.forename: C A
authors.initials: CA
authors.lastname: De Stefano
authors.forename: F
authors.initials: F
authors.lastname: Ungari
mesh_terms: D006801:Humans; D011862:Radiography, Panoramic; D014081:Tooth Extraction; D014096:Tooth, Supernumerary / Q000209:etiology / Q000628:therapy
vernacular_title: Quarto molare inferiore: patogenesi e trattamento.