六龄齿窝沟封闭预防龋齿的临床观察

Clinical Research of Pit and Fissure Sealant with Six-year-old Teeth in Preventing Dental Caries

目的：对6-8岁儿童进行六龄齿窝沟封闭，观察窝沟封闭术在预防六龄齿龋病的疗效。方法：选择九江市双峰小学的200名学生，按照自愿参与原则分为对照组和实验组。对照组100名学生总计296颗健康六龄齿未实施窝沟封闭；实验组100名共计312颗健康六龄齿实施窝沟封闭。半年、1年后复查，记录结果并分析。结果：半年、1年后复查，对照组患龋率分别为8.45%（25/296）、12.16%（36/296）；实验组患龋率分别为0.96%（3/312）、1.28%（4/312），两组比较差异均具有统计学意义（P〈0.01）。结论：对六龄齿进行窝沟封闭能有效的预防龋病发生。

Objective：To observe the clinical effect of pit and fissure sealant （PFS） in preventing dental caries of six-year old teeth. PFS was carried out to the 6-8 years old children.Method： 200 students were selected from Shuangfeng primary school of jiujiang. 100 students with a total of 312 six-year old teeth were carried out PFS as a test group;other 100 students with a total of 296 six-year old teeth were not carried out PFS as a control group. Observed and analysed the effect after 0.5 year,1 year.Result： 0.5 year,1 year later,caries rates of the control group was 8.45% （25/296）, 12.16% （36/296）;the test group was 0.96% （3/312）, 1.28%（ 4/312）; there was a significant difference（P〈0.01）.Conclusion： PFS of six-year old teeth has a good effect in preventing dental caries.