title: [Dental caries and periodontal diseases in adult Jiangxi cohort: a sample investigation].
abstract: OBJECTIVE
  To investigate the current status of dental caries and periodontal diseases in the population aged 35-44 and 65-74 years in Jiangxi province, and to provide information for prevention of these diseases.
  
  
  METHODS
  1584 people (aged 35-44 and 65-74 years) were selected by equal-sized stratified multi- stage and random sampling. Their dental caries and periodontal diseases were examined in routine epidemiologic surgery manner. Student's t test and Chi-square test were applied for statistical analysis using SPSS12.0 software package.
  
  
  RESULTS
  In the age group of 35-44 and 65-74 years, the prevalence rate of dental caries was 59.4% and 85.5%, the mean DMFT was 2.19 and 4.91, the prevalence rate of root caries was 32.7% and 79.5%, the mean DFRoot was 0.28 and 1.25,the rate of healthy periodontal tissues was 0.1% and 5.3%.
  
  
  CONCLUSIONS
  Dental caries and periodontal diseases are quite common diseases in Jiangxi Province. We should reinforce the oral health care and the propaganda for oral care knowledge in order to treat caries and periodontal diseases better and earlier, and improve the life quality of middle-aged and elderly citizens.
authors.affiliation: Department of Preventive Dentistry, Hospital of Nanchang University. Nanchang 330006, China. ouxiaoyan68@yahoo.com.cn
authors.forename: Xiao-yan
authors.initials: XY
authors.lastname: Ou
authors.forename: Wei
authors.initials: W
authors.lastname: Xiong
authors.forename: You-de
authors.initials: YD
authors.lastname: Hu
authors.forename: Yi-peng
authors.initials: YP
authors.lastname: Hu
authors.forename: Hong-shui
authors.initials: HS
authors.lastname: Zhu
mesh_terms: D000328:Adult; D000368:Aged; D004245:DMF Index; D003731:Dental Caries / Q000453:epidemiology*; D006801:Humans; D008875:Middle Aged; D009909:Oral Health; D010510:Periodontal Diseases / Q000453:epidemiology*; D015995:Prevalence