title: [Incidence of malocclusion and its etiology in children of preschool age].
mesh_terms: D002648:Child; D002675:Child, Preschool; D006801:Humans; D008310:Malocclusion / Q000453:epidemiology* / Q000209:etiology*; D011044:Poland
vernacular_title: Czestość wad zgryzu i ich etiologia u dzieci przedszkolnych.