【摘要】 目的　观察采用GCIX玻璃离子用于窝沟封闭剂预防窝沟龋的临床效果。方法　随机选 136名 6～ 7岁儿童 ,对每个儿童选取左侧或右侧上下两个已完全萌出的第一磨牙共 2 72只牙 ,使用GCIX玻璃离子进行窝沟封闭 ,作为观察组 ;同时选取其对侧同名牙作空白对照 ,作为对照组。分别于封闭术后 1、 2、 3年复查封闭剂保留情况 ,对比观察组和对照组的患龋情况。结果　随诊 3年发现GCIX玻璃离子在术后 1、 2、 3年的完整保留率分别为 81 3% ,73 2 %和 5 8 1% ,术后 1、 2、 3年观察组龋病发生率明显低于对照组。结论　GCIX玻璃离子可作为一种可靠的窝沟封闭剂用于预防窝沟龋的发生 ,且效果明显 ,值得临床推广应用更多还原

【Abstract】 Objective To observe the clinical effect of GCIX glass ionomers used as pit and fissure sealant in the prevention of fissure caries with fissure sealing. Methods 136 children from 6 to 7 years old were involved into this study. 272 completely erupted first permanent molars from upper and nether side were selected as experimental group, and were given fissure sealing with GCIX glass ionomers. And the corresponding tooth of each one in the experimental group was selected as control group. Reservations of pit and fissure sealant were observed after 1, 2 and 3 years of the fissure sealing, respectively. Results In the follow-up of 1year, 2 years and 3 years, GCIX glass ionomers were found to be reserved as 81.3%, 73.2% and 58.1% of the initial, respectively, and the occurrence of dental caries decreased to be lower of the initial, respectively. Conclusions GCIX glass ionomers could be well used as pit and fissure sealant in the prevention of fissure caries with fissure sealing. And it was suggested to supply apparent clinical therapy effect and respectful application value.更多还原