title: [Prevalence of first permanent molar loss in 6 to 12-year-old students of both sexes in Ribeirão Preto].
abstract: The authors study the prevalence of lost of the first permanent molars in 6 to 12 years old schoolchildren of medium and low social-economic levels, in both sexes, from Ribeirão Preto, SP., on right and left hemiarcs, and both maxilars. The results indicate that teeth los was significantly higher in females, and in both sexes the teeth lost was higher in the lower maxilar. No differences were also observed between hemiarchs.
authors.forename: L H
authors.initials: LH
authors.lastname: Ferlin
authors.forename: A D
authors.initials: AD
authors.lastname: Daruge
authors.forename: R J
authors.initials: RJ
authors.lastname: Daruge
authors.forename: S V
authors.initials: SV
authors.lastname: Rancan
mesh_terms: D001938:Brazil / Q000453:epidemiology; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008963:Molar / Q000473:pathology*; D015995:Prevalence; D012923:Social Class; D014080:Tooth Exfoliation / Q000453:epidemiology*
vernacular_title: Prevalência da perda de primeiros molares permanentes, em escolares de 6 a 12 anos, de ambos os sexos, da cidade de Ribeirão Preto (SP).