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首页> 外文OA文献 >Cyclic fatigue of new nickel-titanium instruments in artificial canals with single and double curvature [Fatica ciclica di nuovi strumenti al nichel-titanio in canali artificiali a singola e doppia curvatura]
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Cyclic fatigue of new nickel-titanium instruments in artificial canals with single and double curvature [Fatica ciclica di nuovi strumenti al nichel-titanio in canali artificiali a singola e doppia curvatura]

机译：单曲率和双曲率人工渠道中新型镍钛器械的循环疲劳[单曲率和双曲率人工通道中新型镍钛器械的循环疲劳]

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Objectives: Aim of this study was to evaluate the cyclic fatigue resistance of two types of new nickel-titanium endodontic instruments Materials and methods: 80 instruments divided into 4 groups (20 each group), GTX 30/.06, GTX 40/.04, Twisted Files 30/.06, Twisted Files 40/.04. All the instruments were tested in two different artificial canals, one with a single curvature and the other with a double curvature. All instruments were rotated until fracture and the number of cycles to fracture (NCF) was then calculated, Results: Twisted Files instruments resisted longer in rotation in the different canals. The size of the instrument (30.06, 40.04) did not have a statistically significant influence. Conclusions: The instruments Twisted Files were more resistant to cyclic fatigue compared to the GTX. © 2012 Società Italiana di Endodonzia.
机译：目的：本研究的目的是评估两种新型镍钛牙髓器械的耐循环疲劳性。材料和方法：80台仪器分为4组（每组20组），GTX 30 / .06，GTX 40 / .04 ，Twisted Files 30 / .06，Twisted Files 40 / .04。所有器械均在两个不同的人工运河中进行了测试，一个具有单曲率，另一个具有双曲率。旋转所有器械直至断裂，然后计算断裂循环数（NCF）。结果：Twisted Files器械在不同根管中抵抗旋转的时间更长。仪器的大小（30.06，40.04）没有统计学上的显着影响。结论：与GTX相比，Twisted Files仪器对循环疲劳的抵抗力更高。 ©2012SocietàItaliana di Endodonzia。

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