【摘要】 目的:评价非创伤性充填(ART)技术对恒牙窝沟封闭后,封闭剂保留及新生龋损发生情况。方法:1996年在四川省德阳市4所中学选取12～13岁儿童140名作191个牙ART封闭。采用WHO的ART标准器械,德国ESPE公司生产的高强度玻璃离子材料,对选择的牙面窝沟进行封闭;操作者为经中等口腔专业训练的医生。封闭后每年对ART封闭及牙龋损情况进行评价。结果:封闭后1、2、4、6年的完整保留率分别为75.4%、62.5%、50.0%、34.6%;成功率分别为89.6%、78.8%、68.5%、57.9%。试验后1年没有新生龋牙的发生,试验后2、3年,龋患发生率分别为1.6%、2.8%。试验后4年龋病有明显增加,试验4、5、6年后,龋病发生率分别为8.5%、16.1%、15.0%。结论:ART封闭试验3年的保存率较高、新生龋发生率低;试验6年封闭剂保留率虽然有所降低,但其结果还是令人满意的,预防龋病的效果是显著的。但封闭物脱落3年后,若没有重新修复,新龋患率大幅度上升,作为恒牙龋病防治的措施是适合和可接受的;是一种适合于在学校、社区开展的有效、实用的龋病预防方法。更多还原

【Abstract】 Objective:To assess whether ART sealants could be applied on children in school environment in China, and to evaluate long term effects of this treatments. Methods:The study was conducted in Deyang, Sichuan Province. Four dentists placed a total of 191 fissure sealants in 140 children in four secondary schools. Standard instruments and procedures for ART were used. The material used was a high-strength glass-ionomer (Ketac-Molara, ESPE). The treatments were evaluated annually by the same dentist who was not involved in the treatment using explorers and mouth-mirrors. Results:The cumulative 1-year, 2-year, 4-year and 6-year complete survival rates of the sealants were 75.4%,62.5%,50.0%,34.6% and the partial or complete retained survival rates were 89.6%, 78.8%, 68.5% and 57.9%. No incidence of new caries was occurred 1 year after ART sealants. The incidence of recurrent caries was very low after 2 and 3 years, which were 1.6% and 2.8% respectively. But there was a high increase of caries 4 years after sealants application. The prevalence of caries were 8.5%,16.1%,15.0% respectively over 4, 5 and 6 years after ART sealants application. Conclusion:The ART approach for preventing teeth caries in school children is effective and acceptable. The 3-year survival rates of the sealant are high with low prevalence of new caries. Six years after sealants application, the result is acceptable though there is a drop of survival rate. New caries is occurred with a highly increased prevalence three years after sealants missing without re-sealant. ART sealant is a simple, acceptable technique and is suitable for widespread application in China.更多还原