根管湿润度对根管封闭性的影响被引量：2

The influence of root canal moisture on the canal sealing

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摘要目的:探究根管内湿润程度对根管封闭性的影响。方法:将160个离体单根牙根管预备后按湿润度分为(含水量,V为4组:①0. 250～0. 299,②0. 300～0. 599,③0. 600～0. 899和④0. 900～1. 199。80个样本分4组(n=20)用于染料渗透实验,另80个分4组(n=20)用于细菌渗漏实验。分别用氧化锌糊剂和AH-Plus与热牙胶垂直加压术封闭各组根管(n=10)。体视显微镜测量离体牙染料渗透长度;观测离体牙于细菌渗漏模型中出现浑浊的天数。结果:在2种根管封闭剂的样本中,随着湿润度的增加染料渗入长度明显增加(P <0. 05),粪肠球菌渗漏到模型下室的天数逐渐缩短(P <0. 05)。结论:根管湿润度增加可降低根管充填的封闭性能。 Objective: To study the effect of different wetness degrees in the root canal on the canal sealing. Methods: 160 root canal prepared single rooted teeth were divided into 4 groups( n = 40) by the root canal wetness degree( water content,V) :(1)0. 250 ~0. 299,(2)0. 300 ~ 0. 599,(3)0. 600 ~ 0. 899 and(4)0. 900 ~ 1. 199 respectively. 80 teeth were divided into 4 groups( n = 20) for dye leakage test and another 80 for bacterial microleakage test. Zinc oxide paste( ZOP) and AH-Plus( AH-P) with vertical condensation of warm gutta-percha were respectively used to seal the canals in each group of the samples( n = 10). The length of in vitro tooth dye penetration was measured by stereomicroscope;the time( days) of turbidity in the bacterial leakage model observed and compared. Results: Of all the canals sealed by ZOP or AH-P with the increase of the wetness the dye infiltration length increased significantly( P <0. 05) and the days in which the faecal intestine ball infiltrated into the lower chamber of the model was gradually decreased( P <0. 05). Conclusion: The increase of root canal moisture may reduce the sealing of the root canal.

作者陈永菊李新潘亚萍郑丹商晔王鹏林 CHEN Yongju;LI Xin;PAN Yaping;ZHENG Dan;SHANG Ye;WANG Penglin(School of Stomatology,Jinzhou Medical University,China,121000;The Second Affiliated Hospital of Jinzhou Medical University;Department of Periodontics and Oral Biology,School of Stomatology,China Medical University,Shenyang)

机构地区锦州医科大学口腔医学院锦州医科大学附属第二医院中国医科大学口腔医学院

出处《实用口腔医学杂志》 CAS CSCD 北大核心 2019年第1期81-86,共6页 Journal of Practical Stomatology

基金辽宁省口腔疾病重点实验室开放课题(编号:LPKLOD-15-04) 辽宁省教育厅基本科研项目(编号:JYTFUDF201745 JYTFUDF201756) 辽宁省临床能力建设项目(编号:LNC-CC-D30-2015) 锦州市科技计划项目(编号:16A2G30) 辽宁省大学生创新训练项目(编号:201510160000048)

关键词根管水分测量仪根管湿润度根管封闭性 Root canal moisture meter Root canal wetness Root canal closure

分类号 R781.05 [医药卫生—口腔医学]

作者简介通讯作者:李新E-mail:httplixin@163.com.

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参考文献1

1刘颖,苗苗,张昕,叶静,邵灿,王斌.终末冲洗方案对根管封闭剂与根管壁牙本质粘接强度的影响[J].实用口腔医学杂志,2016,32(1):72-76. 被引量：9

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