title: [A comparison of incidence of dental caries among primary and middle school pupils in Shanghai at 1982 and 1990].
abstract: In 1982 and 1990, two epidemiological surveys of dental caries of primary and middle school in Shanghai were carried out, using similar standards and methods. A comparison of the results revealed that: the incidence of caries of milk teeth continued to stay at a high level; the incidence of caries of permanent teeth showed a marked reduction. There was no difference between the two sexes. The incidence of caries of permanent teeth of the urban pupils is higher than that of the rural ones. Conversely, the incidence of caries of milk teeth of the rural pupils is still higher than that of the urban ones.
authors.affiliation: Shanghai Municipal Dental Centre.
authors.forename: Z
authors.initials: Z
authors.lastname: Qui
authors.forename: W
authors.initials: W
authors.lastname: Shan
authors.forename: W
authors.initials: W
authors.lastname: Lou
mesh_terms: D000293:Adolescent; D002648:Child; D002681:China / Q000453:epidemiology; D004245:DMF Index; D003731:Dental Caries / Q000453:epidemiology*; D003753:Dental Health Surveys; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D012423:Rural Health; D014094:Tooth, Deciduous; D014504:Urban Health