title: [Frequency and local factors in retention of permanent upper incisors in mixed dentition].
mesh_terms: D002648:Child; D002986:Clinical Trials as Topic; D003818:Dentition, Mixed; D005260:Female; D006801:Humans; D007180:Incisor; D008297:Male; D014080:Tooth Exfoliation / Q000473:pathology*; D014095:Tooth, Impacted / Q000453:epidemiology*
vernacular_title: Freqüência e fatores locais de retenção de incisivos permanentes, superiores, na fase da dentição mista.