临床口腔医学杂志2016，Vol.32Issue(2)：94-96,97,4.DOI:10.3969/j.issn.1003-1634.2016.02.011
不同冲洗技术去除模拟牙内吸收窝洞中氢氧化钙糊剂效果的体外研究
Effect of different irrigation techniques on the removal of calcium hydroxide paste from an artificial root canal cavity of internal root resorption:an in vitro study
摘要
Abstract
Objective:To evaluate the efficacy of different irrigation techniques to remove calcium hydroxide(CH) from a simulated internal root resorption cavity. Method:110 clinically extracted teeth with single root were collected and prepared using the ProTaper system to size F3.The roots were split longitudinally,standardized simulated internal root re-sorption cavities were prepared in the two root halves,and the root halves were reassembled. The root canals of 5 teeth that were not filled with CH served as the negative control group. The root canals of 105 teeth were filled with CH,5 of them were not subjected to the CH removal procedure,antoher 100 teeth were randomly divided into 5 experimental groups (n=20),according to the irrigation techniques used:conventional syringe irrigation group,main file cleaning group,canal brush group,passive ultrasonic irrigation group,sonic vibration group. The amount of remaining CH was evaluated under a ste-re-omicroscope,using van der Sluis 4-grade scoring system. The data were statistically comparedusing the Kruskal-Wallis and Mann-Whitney tests (P <0.05). Result:Remnants of CH in simulated internal root resorption cavities of passive ultrasonic irrigation group and sonic vibration group were less than other groups(P<0.05). There was no significant difference between passive ultrasonic irrigation group and sonic vibration group (P >0.05). There were also no significant differences between conventional syringe irrigation group,main file cleaning group and canal brush group(P>0.05). Conclusion:The passive ul-trasonic irrigation and sonic vibration techniques were superior to the conventional syringe irrigation,main file cleaning group and canal brush techniques in removing CH from simulated internal root resorption cavity.关键词
冲洗技术/牙内吸收/氢氧化钙糊剂Key words
Irrigation techniques/Internal root resorption/Calcium hydroxide paste分类
医药卫生引用本文复制引用
刘贺,钱君荣,耿海霞..不同冲洗技术去除模拟牙内吸收窝洞中氢氧化钙糊剂效果的体外研究[J].临床口腔医学杂志,2016,32(2):94-96,97,4.基金项目
济宁医学院附属医院＂苗圃＂科研计划项目 （）
