Er:YAG激光桩道荡洗技术对纤维桩微渗漏的影响  

Influence of Er:YAG Laser-activated Post Space Irrigation on Fiber Post Microleakage

作　　者：张敏[1] 张晓洁[1] 郑苍尚[1] 朱耀旻 ZHANG Min;ZHANG Xiaojie;ZHENG Cangshang;ZHU Yaomin(Department of Stomatology,the Second People's Hospital of Shenzhen,Shenzhen 518035,China;Department of Stomatology,General Hospital of ShenZhen University,Shenzhen 518040,China)

机构地区：[1]深圳市第二人民医院口腔科,广东深圳518035 [2]深圳大学总医院口腔科,广东深圳518040

出　　处：《口腔医学研究》2021年第8期746-749,共4页Journal of Oral Science Research

基　　金：深圳市科技创新项目(重点项目)(编号:JCYJ20200109114006014)。

摘　　要：目的:研究Er:YAG激光桩道荡洗技术对纤维桩微渗漏的影响。方法:选取大小形状相似的30颗单根管离体上前牙,经常规根管治疗后,根管上段2/3行桩道预备。按照荡洗技术随机平均分成3组:生理盐水组、2.5%次氯酸钠溶液组、Er:YAG激光联合2.5%次氯酸钠溶液组。纸尖干燥桩道并完成纤维桩粘接。截取离体牙釉牙骨质界至下方6 mm牙体作为检测试件,采用葡萄糖氧化酶-过氧化物酶法测量其微渗漏情况。结果:生理盐水荡洗组的微渗漏为(0.941±0.096)mmol/L,2.5%次氯酸钠溶液荡洗组的微渗漏为(0.911±0.075)mmol/L,Er:YAG激光联合2.5%次氯酸钠荡洗组的微渗漏为(0.889±0.102)mmol/L。3种荡洗技术间的微渗漏程度比较差异有统计学意义(P<0.05)。结论:Er:YAG激光辅助荡洗桩道能够减少纤维桩微渗漏。Objective:To study the influence of Er:YAG laser-activated post space irrigation on fiber post microleakage.Methods:A total of 30 extracted upper incisors with similar size and shape were randomly divided in 3 groups.After conventional root canal treatment and post space preparation,three kinds of irrigation(sodium chloride solution,2.5%sodium hypochlorite,and Er:YAG laser with 2.5%sodium hypochlorite)were applied to the post space.After sticking fiber post with bond,the specimens were cut out 6 mm from cement-enamel junction.The degree of microleakage was measured by Glucose oxidase-peroxidase(GOD-POD)method.Results:The microleakage degrees of sodium chloride solution,2.5%sodium hypochlorite,and Er:YAG laser with 2.5%sodium hypochlorite were(0.941±0.096)mmol/L,(0.911±0.075)mmol/L,and(0.889±0.102)mmol/L,respectively(P<0.05).Conclusion:Er:YAG laser-activated post space irrigation can reduce the microleakage of fiber post.

关 键 词：纤维桩 ER:YAG激光 桩道荡洗 微渗漏 

分 类 号：R783.3[医药卫生—口腔医学]