title: [Investigation on noncarious hard tissue lesions of teeth in teachers of one university in Shanghai municipality].
abstract: OBJECTIVE
  To investigate the condition of four kinds of noncarious hard tissue lesions of the teeth in teachers of one university in Shanghai municipality and provide guidance about oral health care.
  
  
  METHODS
  The table and the standard on oral health survey authorized by WHO were adopted, condition of four kinds of noncarious hard tissue lesions of teeth in 776 teachers of East China University of Science was investigated and analyzed using SPSS16.0 software package.
  
  
  RESULTS
  The average wedge-shaped defect teeth was 5.54±3.87, the incidence was 30.41%, caries incidence of the first bicuspid was the highest(29.52%). The incidence of tetracycline pigmentation teeth was 3.09%, the incidence of enamel hypoplasia was 2.06%, and the incidence of dental fluorosis was 1.55%.
  
  
  CONCLUSIONS
  The average wedge-shaped defect teeth is higher than the data over the country, the incidence of dental textural anomaly is lower. The behaviors of oral health care of university teachers in Shanghai municipality remains to be further strengthened.
authors.affiliation: Department of Stomatology, Dahua Hospital, Xuhui District. Shanghai 200237, China. yili8888@126.com .
authors.forename: Yi-li
authors.initials: YL
authors.lastname: Chen
authors.forename: Zhe-dan
authors.initials: ZD
authors.lastname: Zhang
authors.forename: Jian-qing
authors.initials: JQ
authors.lastname: Guo
authors.forename: Ya-ping
authors.initials: YP
authors.lastname: Zhu
authors.forename: Qun
authors.initials: Q
authors.lastname: Wang
authors.forename: Ling-yu
authors.initials: LY
authors.lastname: Gao
mesh_terms: D001641:Bicuspid; D002681:China; D003731:Dental Caries; D005178:Faculty; D006801:Humans; D014495:Universities