ABSTRACT
Objective To evaluate the clinical effect of fluoride agents in prevention of caries in preschool 4 to 5 years old children.Methods 700 kindergartens 4 -5 years old children were selected to conduct prevention study with the agree of guardian.The children were randomly divided into observation group and control group. 350 preschool children in the control group received regular oral health measures and fluoride foam treatment every six months.350 preschool children in the observation group received fluoride products every six months on the basis of the control group.After two years study,the deciduous caries and caries rate of the two groups were analyzed.Results After prevention of dental caries 24 months,the prevalence of dental caries and caries of deciduous teeth surface in the observation group significantly reduced,and were significantly lower than the control group ( observation group:caries prevalence 11.3%,caries mean 0.85;control group:caries prevalence 36.1%,caries mean 1.77),the deciduous caries rate and the number of surface caries between the two groups had statistically significant differences (χ2 =4.339 1,3.016 8,all P<0.05).Conclusion Child deciduous dental caries in China is still at a relatively high inci-dence of disease,regular use of fluoride foam and fluoride products namely fluor protector can significantly prevent dental caries,oral health measures than on a regular basis is more effective,and significantly reduce deciduous caries among children,protection of children's oral health,and it is worth further clinical application.
ABSTRACT
[Objective] To observe the effect of fluoride foam on dental caries increment in primary teeth, and provide the basis for prevention and control of children's dental caries. [ Methods] Three hundred and thirty-five children were included randomly from junior classes of 4 kindergartens as experi-mental group , and another 268 children from junior classes of another 4 kindergartens as control group .The experimental group used 1.23%fluoride foam twice a year , and the control group did not have any inter-ventions.The two groups of children were followed up for 3 years, and examined for the situation of their caries detection rate and average risk of caries , and for evaluation of the effect of fluoride foam in prevention of children's dental caries . [ Results] Caries detection rate in the two groups increased with age .After 3 years, caries detection rate in control group increased by 34.05%and in experimental group increased by 22. 19%.The use of fluoride foam reduced 10.89%caries disease for experimental group .Caries detection rates were 55.62%in experimental group and 66.51%in control group .The difference in detection rate was sig-nificant between experimental group and control group (P<0.05).Average caries in experimental group was 3.4 ±4.38 after 3 years, and 4.7 ±4.80 in control group.There was a significant difference in average caries between the two groups (P<0.05). [Conclusion] Application of 1.23%fluoride foam was effective in reducing the increment of dental caries in primary teeth , and it is worth promoting in the kindergartens .