title: [Prevalence of tooth erosion of 5-year-old and 12-year-old children in Xuzhou city].
abstract: OBJECTIVE
  To investigate the prevalence of tooth erosion of Xuzhou city's children.
  
  
  METHODS
  The stratified, cluster and random sampling methods were performed. The prevalence of tooth erosion of 1,219 5-year-old children and 786 12-year-old children in Xuzhou city were examined by one qualified dentist. The results of clinical examination were recorded by schedule table. The risk factors of tooth erosion were investigated by questionnaire and analyzed by Logistic regression model.
  
  
  RESULTS
  In 5-year-old children group, the prevalence of tooth erosion was 10.91%. In 12-year-old children group, the prevalence of tooth erosion was 22.14%. The ranking of tooth erosion were mostly class 1 and class 2. The tooth erosions of class 3 and above were rare. The odds rations for tooth erosion were: Acidic fruits, 1.120; acidophilous milk, 1.062; sport drinks, 1.159; carbonated drinks, 1.151; fruit juice, 1.187; drinking acidic drinks or acidophilous milk before sleeping, 6.102; gastroesophageal reflux disease, 2.311; vitamin C, 1.565; supply chalybeate, 1.598.
  
  
  CONCLUSIONS
  The prevalence of tooth erosions in Xuzhou is extensive. Oral health education and drink and food guidance should be strengthened. The amount and frequency of intake of acidic food and drink should be reduced to promote oral health.
authors.affiliation: Dept. of Preventive Dentistry, West China College of Stomatology, Sichuan University, Chengdu 610041, China.
authors.forename: Ya-gang
authors.initials: YG
authors.lastname: Chen
authors.forename: Xue
authors.initials: X
authors.lastname: Li
authors.forename: De-yu
authors.initials: DY
authors.lastname: Hu
authors.forename: Hong
authors.initials: H
authors.lastname: Shen
authors.forename: Ke-zeng
authors.initials: KZ
authors.lastname: Li
authors.forename: Ying
authors.initials: Y
authors.lastname: Zhao
authors.forename: Ling-ling
authors.initials: LL
authors.lastname: Peng
mesh_terms: D002253:Carbonated Beverages; D002648:Child; D002681:China; D003743:Dental Enamel; D005247:Feeding Behavior; D005260:Female; D006801:Humans; D008297:Male; D015995:Prevalence; D012307:Risk Factors; D014077:Tooth Erosion