Dent Mater J:加工后热处理后的往复运动镍钛器械性能分析

2019-11-18 lishiting MedSci原创

这篇研究的目的是为了评估加工后热处理对往复运动镍钛器械根管定心能力以及产生扭矩/力的影响。

这篇研究的目的是为了评估加工后热处理对往复运动镍钛器械根管定心能力以及产生扭矩/力的影响。

研究采用几何形态完全相同的往复运动器械施以加工后热处理与否的情况下(Reciproc Blue/Reciproc, VDW, Munich, Germany)预备仿真J形树脂根管。使用一种新颖的具有自动根管预备和扭矩/力分析的仪器,使锉针结合往复和上下的模式进行运动,并监测扭矩/力值变化。叠加预备前后影像,检测根管定心率。

结果显示,与Reciproc相比,Reciproc Blue在距离根尖0-1 mm处表现出较低的定心率(i.e., 低偏离; p<0.05),并且产生向上的最大垂直压力更小(p<0.05)。在所使用自动设备的标准条件下,Reciproc Blue比Reciproc表现出更好的根管定心能力以及产生更小的拧入力,表明加工后热处理使往复运动镍钛器械的表现更加优异。

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    2020-10-16 yahu
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    2020-05-11 30397613
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