title: [A study on the epidemiology of permanent tooth caries in juvenile group in Anhui province].
abstract: OBJECTIVE
  To survey the prevalence of dental caries and the needs for dental treatment in Anhui province.
  
  
  METHODS
  The survey of prevalence of dental caries in group aged 12 and 15 years in Anhui province was conducted using the non-proportional, stratified, cluster sampling method.
  
  
  RESULTS
  DMFT in 12-year and 15-year group was 0.58 and 0.95 respectively, and permanent tooth caries prevalence rate was 30.78% and 39.78% respectively, lower than that of same age of other 11 provinces in mainland China (P < 0.01). The constituent ratio of DMFT was 90.51% (D), 2.48% (M), 7.01% (F) in 12-year group and 86.78% (D), 4.30% (M), 8.92% (F) in 15-year group.
  
  
  CONCLUSIONS
  When we controlled dental caries in 19.98% 12-years crowd and 22.8% 15-years crowd of Anhui province, we will had controlled the occurrence of 80% caries too in group aged 12 and 15 years.
authors.affiliation: Department of Preventive Dentistry, School of Stomatology, Anhui Medical University, Hefei 230032, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Jiang
authors.forename: Li
authors.initials: L
authors.lastname: Zhang
authors.forename: Yu-chun
authors.initials: YC
authors.lastname: Yan
authors.forename: Xiao-lan
authors.initials: XL
authors.lastname: Han
authors.forename: Hong-ying
authors.initials: HY
authors.lastname: Wang
mesh_terms: D000293:Adolescent; D002648:Child; D002681:China / Q000453:epidemiology; D003731:Dental Caries / Q000453:epidemiology* / Q000517:prevention & control; D005260:Female; D006801:Humans; D008297:Male; D015995:Prevalence; D012494:Sampling Studies