title: The effect of residence and social class on dental caries experience in 15-16-year-old children living in three towns (natural fluoride, adjusted fluoride and low fluoride) in the north east of England.
abstract: Caries experience in 1374 children aged 15-16 years from three towns in the north east of England with varying concentrations of fluoride in drinking water, was determined. The mean DMFT values for 15-year-old continuous residents was 1.7 in Hartlepool (natural F 1.0-1.3 ppm), 2.5 in Newcastle (F adjusted to 1.0 ppm) and 3.3 in Middlesbrough (F = 0.2 ppm). Forty per cent of Hartlepool 15-year-olds were caries free, compared with 30% in Newcastle and 24% in Middlesbrough. Caries prevalence for both Hartlepool and Newcastle 'continuous residents' was lower than for non-continuous residents, whereas in Middlesbrough, the low fluoride area, non-continuous residents had a lower DMF value than those who had lived in Middlesbrough all their lives. There was a slight trend in both Newcastle and Middlesbrough for DMFT values to increase from social class I to social class V, but no discernable trend was observed in Hartlepool. The results for Hartlepool 15-year-olds were very similar to those reported by Weaver in 1949.
authors.affiliation: Department of Child Dental Health, Dental School, University of Newcastle upon Tyne.
authors.forename: J J
authors.initials: JJ
authors.lastname: Murray
authors.forename: J A
authors.initials: JA
authors.lastname: Breckon
authors.forename: P J
authors.initials: PJ
authors.lastname: Reynolds
authors.forename: E D
authors.initials: ED
authors.lastname: Tabari
authors.forename: J H
authors.initials: JH
authors.lastname: Nunn
mesh_terms: D000293:Adolescent; D000704:Analysis of Variance; D004245:DMF Index; D003731:Dental Caries / Q000453:epidemiology*; D004739:England / Q000453:epidemiology; D005457:Fluoridation; D006801:Humans; D012111:Residence Characteristics; D012923:Social Class