Résumé
Objective@#To explore the prevention and control effects of different management modes on children with high risk of dental caries from some kindergartens in Zhangjiagang, and to provide a basis for relevant departments to formulate oral health management strategy.@*Methods@#In September 2020, 1 600 children aged 3 years old from 9 towns in Zhangjiagang were sampled by cluster sampling method for baseline survey, including oral examination, questionnaire survey and caries susceptibility test. According to the risk assessment criteria, high risk children were screened out and divided into two groups. In the experimental group, the frequency of fluoride application was once every 3 months, combined with behavioral management and oral health guidance. In the control group, fluoride application was conducted once every 6 months, combined with behavioral management and oral health guidance. The effect of caries prevention was evaluated one year later.@*Results@#The prevalence of caries in three year old children was 50.9% at baseline, and the prevalence of caries in boys and girls was 47.5% and 54.5%, respectively, with statistical significance ( χ 2=9.64, P <0.05). A total of 1 090 high risk children were screened out, including 475 in experimental group and 615 in control group. The prevalence of caries in the two groups at baseline was 74.1% and 75.1%, respectively, and dmft were (2.98±3.33) and (3.04±3.16), respectively, with no significant difference ( χ 2/t =0.15, 0.28, P >0.05). One year after intervention, the prevalence of caries in the two groups was 78.5% and 83.0%, respectively and dmft were (4.22±3.97) and (4.51±4.08), respectively, with no statistical significance ( χ 2/t=3.17, 0.05, P >0.05). The incidence of new caries in the experimental group was 3.7%, and the incidence of new caries was (1.26±1.69), lower than 7.6% and (1.45±2.04) in the control group, with statistical significance ( χ 2/t=6.89, 5.05, P <0.05).@*Conclusion@#The frequency of fluorination intervention once every 3 months combined with behavior management mode was more effective in controlling new caries in children with high risk of caries.