摘要
目的调查大连市幼儿园3~5岁儿童的患龋情况,比较研究对象涂氟前后患龋状态与龋齿活跃度的变化。方法以2015—2016年大连市3所幼儿园3~5岁的1004名儿童为研究对象,随机分为试验组和对照组,试验组1年2次涂氟,对照组1年1次涂氟,行口腔内龋齿检查,龋齿活跃度检测。结果涂氟前试验组儿童患龋率为55.4%,对照组患龋率为52.8%。涂氟前后试验组的患龋率由55.4%下降至40.8%,差异有统计学意义(P<0.05);试验组与对照组的患龋率比较,差异有统计学意义(P<0.05)。两年间龋齿活跃度检测结果的分布明显不同,试验组涂氟前后低度组增加了11.6%,中度组减少了3.7%,高度组减少了7.9%,差异有统计学意义(P<0.001)。结论 1年2次的长期局部涂氟可以有效预防龋齿的发生,降低龋齿活跃度。
Objective To investigate the prevalence of caries in pre-school children aged 3-5 years old in Dalian city and to compare the caries status and caries activity before and after fluoride application.Methods A total of 1004 children aged 3-5 years from 3 pre-schools in Dalian from 2015 to 2016 were randomly divided into experimental group and control group.The experimental group received fluoride application twice a year,while the control received fluoride application once a year.The plaque samples were collected from buccal surface,and incubated in the Cariostat test medium（Okadai Co,Beijing,China） at 37℃ for 48 hours.Fluoride was Duraphat（Colgate Co,Beijing,China）.SPSS software 13.7 was used for statistical analysis.Results Before applying fluoride,the prevalence of caries was 55.4% in the experimental group and 52.8% in the control group.The prevalence of caries decreased from 55.4% to 40.8% in the experimental group after fluoride application（P〈0.05）.There was significant difference in the caries prevalence between the experimental group and the control group（P〈0.05）.Cariostat scores of the children were correlated with caries status（caries-free/carious）.In the experimental group,Cariostat scores had a significant change before and after fluoride application（P〈0.001） in two years.Conclusion Long-term local application of fluoride twice a year can effectively prevent the occurrence of dental caries and reduce the activity of dental caries.
出处
《大连医科大学学报》
CAS
2017年第6期562-565,共4页
Journal of Dalian Medical University
基金
大连市医学科学研究计划基金项目(201405)
关键词
患龋状态
龋齿活跃度
龋齿活跃性试验法
涂氟
caries prevalence
caries activity test
cariostat
fluoride application
