title: [The epidemiological investigation of dental caries among 5-year old children in Liaoning province].
abstract: OBJECTIVE
  To investigate the oral health status and its influential factors among pre-school children in Liaoning province, and to provide first hand data for prevention of caries.
  
  
  METHODS
  According to the Third National Oral Health Investigation criteria, the oral status of 792 children aged 5 years old in 6 regions of Liaoning province were examined. SPSS 13.0 software package was used for statistical analysis.
  
  
  RESULTS
  The prevalence of dental caries and caries means of 792 subjects were 73.86% and 4.38 respectively. The prevalence of dental caries and caries means in rural area was significantly higher than that in city area, (X(2)=16.07,P<0.01). There was no significant difference of caries prevalence between male and female X(2)=0.46,P>0.05). The prevalence of dental caries and caries means of 5-year old children in Liaoning province were lower than that of ten years ago.
  
  
  CONCLUSIONS
  Oral health status in Liaoning province should be paid more attention, and more effective measures should be taken to the incidence of dental caries.
authors.affiliation: Department of Preventive Dentistry, School of Stomatology, China Medical University, Shenyang 110002, Liaoning Province, China.
authors.forename: Rui-bo
authors.initials: RB
authors.lastname: Cheng
authors.forename: Ying
authors.initials: Y
authors.lastname: Zhang
authors.forename: Lu
authors.initials: L
authors.lastname: Liu
authors.forename: Wei
authors.initials: W
authors.lastname: Tao
mesh_terms: D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D003731:Dental Caries / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D015995:Prevalence