窝沟封闭前局部用氟对离体牙窝沟侧壁氟含量的影响  

The fluoride content in fissure enamel with acid phosphate fluoride treatment before placing pit and fissure sealant

作　　者：赵丽萍[1] 关飞[1] 时清[2] 葛丽华[3] 毛骞[4] 

机构地区：[1]首都儿科研究所附属儿童医院口腔科,北京100020 [2]首都医科大学附属北京口腔医院儿童口腔科,北京100050 [3]首都医科大学附属北京口腔医院研究所,北京100050 [4]中国科学院地质与地球物理研究所电子探针与电镜实验室,北京100029

出　　处：《中华口腔医学研究杂志（电子版）》2016年第3期184-186,共3页Chinese Journal of Stomatological Research(Electronic Edition)

摘　　要：目的研究窝沟封闭前局部使用酸性磷酸氟(APF)对窝沟侧壁氟含量的影响。方法收集第三恒磨牙共9对18颗,随机一侧为对照组、对侧同名牙为酸性磷酸氟处理组。(1)对照组:酸蚀60 s,窝沟封闭;(2)处理组:酸性磷酸氟溶液处理4 min后,酸蚀60 s,窝沟封闭。用电子探针显微分析(EPMA)对窝沟侧壁进行点检测,所得数据进行配对t检验统计学分析。结果酸性磷酸氟处理组的窝沟侧壁氟含量为(0.50±0.09)%,明显高于对照组含量(0.24±0.12)%,差异有统计学意义(t=-4.670,P=0.002)。结论窝沟封闭前局部使用酸性磷酸氟溶液,可提高窝沟侧壁氟含量。Objective To study the fluoride content in fissure enamel surface of permanent molars by using acid phosphate fluoride（APF）before placing pit and fissure sealant. Methods Nine pairs of Caries-free extracted human third molars were randomly divided into two groups with nine teeth each. One side is the control group,the symmetrical teeth on the other side is test group. In the control group,sealants were placed after enamel etching with 37% phosphoric acid. In the test group,occlusal surfaces were treated by APF for four minutes,and then sealants were placed after enamel etching with 37% phosphoric acid. After sealing,the fluoride contents in fissure enamel surface of these samples weredetected by electron probe microanalysiser（EPMA）. The values of fluoride content were comparedbetween two groups were analyzed by SPSS software. Results The fluoride content in fissure enamel is（0.50 ± 0.09）% in test group,and（0.24 ± 0.12）% in the control group. Statistical analysis shows the fluoride content in test group is significantly higher than that in the control group（t =-4.670,P = 0.002）.Conclusion Topical fluoride application before placing pit and fissure sealant can increase the fluorid econtent of fissure enamel.Pit and fissure sealantsFluorineElectron probe microanalysis

关 键 词：坑缝封闭物 氟 电子探针微区分析 

分 类 号：R788.1[医药卫生—口腔医学]