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目的:通过对比采用窝沟封闭术(PFS)儿童连续3年窝沟封闭剂留存及其龋齿情况,探讨应用PFS后对预防龋齿的临床疗效。方法:将2009年1月-2010年6月来笔者所在医院进行PFS处理的700名儿童作为本次观察主体,将其第一、二恒牙给予PFS处理,共封闭810颗设其为治疗组;选择其右侧同名健康牙810颗作为对照组,对比治疗组封闭剂留存与两组龋齿情况。结果:治疗组3年后窝沟封闭剂留存率为77.90%,龋齿率为3.14%;对照组3年后龋齿率为9.75%,治疗组龋齿发生率明显较对照组低(P<0.05)。结论:PFS是在恒牙与口腔环境间建立的一道屏障,临床注意其适应证和确保窝沟封闭的严密性,并坚持定期复查,对有效预防龋齿效果明显。
Objective: To compare the survival of pit and fissure sealant in children with fissure septal occlusion (PFS) for 3 years and their dental caries, and to explore the clinical effect of PFS on the prevention of dental caries. Methods: From January 2009 to June 2010, 700 children whose PFS was treated at the author’s hospital were regarded as the main body of observation, and their first and second permanent teeth were treated with PFS. 810 children were treated as the treatment group ; Select the right side of the same name as the healthy teeth 810 as a control group, the treatment group sequestrant retention and two groups of dental caries. Results: The survival rate of pit and fissure sealant was 77.90% and the caries rate was 3.14% after 3 years in treatment group. The dental caries rate in control group was 9.75% after 3 years. The incidence of dental caries in treatment group was significantly lower than that in control group (P <0.05). Conclusion: PFS is a barrier established between the permanent teeth and the oral environment. Clinical indications of the PFS and the tightness of the pit and fissure sealant are closely monitored. PFS is inspected regularly and is effective in preventing tooth decay.