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目的:评估窝沟封闭对预防第一磨牙窝沟龋的2年临床疗效。方法:选择贵阳市花溪区200名7-9岁经家长同意并签署窝沟封闭知情同意书的学生为实验组,进行第一磨牙窝沟封闭;因家长不同意而未进行窝沟封闭的200名同龄学生为对照组,两年内复查两组的龋病发病率和封闭剂的保留情况。结果:实验组窝沟封闭后第一年、第二年第一磨牙龋病的发生率分别为1.50%和1.01%,而对照组分别为4.00%和6.57%,第二年实验组的第一磨牙龋病发病率显著低于对照组,差异有统计学意义(P<0.05)。实验组第一年、第二年的封闭剂完全保留率分别是85.5%和80.4%。结论:窝沟封闭作为一项健康干预措施,能有效降低学生的龋病发病率。
PURPOSE: To evaluate the 2-year clinical efficacy of pit and fissure sealant in prevention of fissure caries in first molars. METHODS: Two hundred and seventy-nine-year-old pupils in Huaxi District of Guiyang were enrolled in this study, with the consent of their parents and signed informed consent of fissure sealant as experimental group. The first molars were closed. The parents did not agree with the fissure sealant 200 The same age students as the control group, two years to review the incidence of caries in both groups and the retention of the blocking agent. Results: The rates of first molar dental caries in the first year and second year of the experimental group were 1.50% and 1.01% respectively, while those in the control group were 4.00% and 6.57% respectively. In the second year, the first group The incidence of molar caries was significantly lower than that of the control group (P <0.05). The complete retention rates of sealant in the first year and the second year of the experimental group were 85.5% and 80.4% respectively. Conclusion: Pit and fissure sealant as a health intervention can effectively reduce the incidence of dental caries in students.