Sampling Survey On Caries Aged6-year-old,9-year-old And12-year-old Children And The Analysis Of12-year-old Children’s Relevant Knowledge,Attitude And Behavior In Urumqi

Objective:To investigate the prevalence of dental caries aged6-year-old,9-year-o Id and12-year-old children and the related factors of dental caries of12-year-old c hildren in Urumqi.Methods:All of the1168children aged6-year-old,9-year-old an d12-year-old were sampled from six schools by layered, cluster and random sampl ing in Xinshi district and Urumqi county. Oral examination were performed to the criteria and methods used in the third Chinese National Oral Health Survey.The str ucture questionnaire included information on oral hygiene habits.dietary habits and oral health knowledge. Χ2text using the single factor analysis and logistic regressio n multivariate analysis.Software used epidatal7.0,text level is0.05.Results:The dec iduous dental caries rate were58.62%and mean dmft1.71in6-year-old children There was no significant difference by statistical analysis between city area and r ural area (x2=0.005P=0.512).And there was no significant difference by statistical analysis between man and woman (x2=2.477P=0.071). The filling rate of6-year-o Id children were7.75%.There was a significant difference by statistical analysis bet ween city area and rural area (x2=8.847P=0.002).There was a significant differenc e by statistical analysis between man and woman(Χ2=1.603P=0.141).The deciduou s dental caries rate were62.92%and mean dmft2.34in9-year-old children.There was no significant difference by statistical analysis between city area and rural are a(Χ2=0.393P=0.301).There was no significant difference by statistical analysis betwe en man and woman(Χ2=0.306P=0.327). The filling rate of9-year-old children wer e2.87%.There was a significant difference by statistical analysis between city area and rural area(Χ2=10.693P=0.001).There was no significant difference by statistical analysis between man and woman(Χ2=0.314P=0.405).Permanent teeth caries prevale nce in9-year-old children were18.28and mean DMFT0.36.There was no signific ant difference by statistical analysis between city area and rural area(Χ2=0.281P=0.345).There was no significant difference by statistical analysis between man and w oman (Χ2=0.058P=0.458).The filling rate of permanent teeth in9-year-old children were1.31.There was no significant difference by statistical analysis between city a rea and rural area(Χ2-1.655P=0.204).There was no significant difference by statisti cal analysis between man and woman (x2=2.562P=0.162).Permanent teeth caries p revalence in12-year-old children were30.15and mean DMFT0.56.There was a si gnificant difference by statistical analysis between city area and rural area(Χ2=4.985P=0.017).There was a significant difference by statistical analysis between man an d woman (x2=4.973P=0.017).The filling rate of permanent teeth in12-year-old chil dren were4.27.There was a significant difference by statistical analysis between cit y area and rural area(x2=4.172P=0.03).There was no significant difference by stat istical analysis between man and woman (Χ2=3.313P=0.057).12-year-old group of children conducted a questionnaire survey,290valid questionnaires. The analysissho wed:Children also eat before going to bed after brushing dessert or drink sweet d rinks are more susceptible to caries (x2=7.252P=0.005). Brush teeth every day mor e than twice the number of children is not susceptible to caries (x2=6.572P=0.007). Investigation eating frequency had no significant impact (P>0.05) on the12-year-o Id child suffering from caries. Impact of oral health in the attitude of dental caries, agreed that "the prevention of dental problems on their own first" caries incidence is low (Χ2=8.851P=0.003).Multivariate statistics showed that brushing frequency, t he situation of children eating before bedtime factors associated with the incidence of dental caries, the two factors are the risk factors for dental caries(P<0.05),(OR>1).Conclusion:primary and permanent teeth of children aged6,9,12higher risk of dental caries. Low filling rate in Urumqi.12-year-old children understand oral knowl edge is acceptable but oral health self-care behaviors should be improved. We shou Id increase children’s oral health education, prevention of childhood caries.