3种往复旋转单支镍钛器械预备模拟弯曲根管的效果比较

发布时间：2018-08-19 14:04

【摘要】：目的:比较3种往复旋转单支镍钛器械预备模拟弯曲根管的切割能力和成形能力,为其临床应用提供参考。方法:选取30个单弯树脂模拟根管模块,随机分为Reciproc组、One file组和WaveOne组,每组10个模块。按厂家提供的使用说明预备模拟根管,记录根管预备时间、预备前后模块的质量差,测量根管弯曲角度的变化及镍钛器械中心定位能力。结果:WaveOne组的根管预备时间较其他2组长(P0.05);3组镍钛器械根管预备前后模块的质量差比较差异无统计学意义(P0.05);3组镍钛器械预备前后模拟根管弯曲角度的差值比较差异无统计学意义(P0.05)。距离根尖孔5 mm处,Reciproc组和One file组的中心定位能力优于WaveOne组(P0.05);在距离根尖孔6和7 mm处,One file组的中心定位能力优于其他2组(P0.05)。结论:WaveOne、Reciproc和One file 3种往复旋转单支镍钛器械均可较好地保持模拟根管的原始形态。WaveOne预备根管的效率低于其他2组。One file在各段根管的中心定位能力均高于其他2组。
[Abstract]:Objective: to compare the cutting ability and forming ability of three reciprocating and rotating single nickel titanium instruments in preparation of simulated curved root canals, and to provide reference for clinical application. Methods: thirty single curved resin simulated root canal modules were randomly divided into Reciproc group one file group and WaveOne group with 10 modules in each group. According to the instructions provided by the manufacturer, the preparation of root canal was simulated, the preparation time of root canal was recorded, the quality of the module before and after preparation was poor, the change of bending angle of root canal and the locating ability of nickel titanium instrument center were measured. Results there was no significant difference in root canal preparation time between the two groups (P0.05). There was no significant difference in the quality difference between the two groups before and after the root canal preparation (P0.05). There was no significant difference in the simulated root canal bending angle between the three groups (P0.05). The ability of central localization in Reciproc group and One file group was better than that in WaveOne group at 5 mm from apical foramen (P0.05), and that in one file group at 6 and 7 mm from apical foramen was better than that in other two groups (P0.05). Conclusion: the efficiency of root canal preparation with the original form of simulated root canal. WaveOne is lower than that of the other two groups. One file is superior to the other two groups in locating the center of each segment of root canal. [conclusion] both the 1: WaveOne Reciproc and One file reciprocating and rotating single nickel titanium instruments can maintain the original shape of simulated root canal and the efficiency of preparing root canal is lower than that of the other two groups.
【作者单位】：吉林大学口腔医院牙体牙髓病科;
【基金】：吉林省科技厅科技发展计划项目资助课题(20140414010GH)
【分类号】：R781.05

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