Mechanical properties of beta-titanium wires
Mechanical properties of beta-titanium wires
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DOI：
10.2319/070510-379.1
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发表时间：
2011-05-01
影响因子：
3.4
通讯作者：
Powers, John M.
中科院分区：
文献类型：
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作者：
Gurgel, Julio A.;Pinzan-Vercelino, Celia R. M.;Powers, John M.
目的：材料和方法：钛钼合金（TIM）、钛钼合金（ORG）、β钛合金（BETA）、钛钼合金（TMA）、钛钼合金低摩擦（TMAL）、钛钼合金（TIM）、钛钼合金（RES）、钛钼合金（TMA）和钛钼合金低摩擦（TMAL）6种钛丝分别置入两个不锈钢托槽，不施加成角或扭矩。两个托槽均粘结到丙烯酸夹具上，托槽间距离为10 mm。一个测试机（Instron）应用偏转0.2至2.0毫米。力-偏转图确定从被动位置激活2毫米，然后在失活。结果：结果表明，不同导丝间的作用力差异有统计学意义（P <0.05）。在激活过程中，导丝的力从最低到最高排列为TMAL=TMA=RES < ORG=BETA < TIM。在去激活期间，丝的力从最低到最高排列为TIM < ORG=BETA < RES= TMA < TMAL。丝表现出类似的激活-失活diagrams.Conclusion：这项研究揭示了显着差异的力量在激活和失活之间的六种类型的β-钛丝测试。（角度正交。2011;81：478-483）。
Objective: To evaluate the force-deflection behavior of six beta-titanium wires using a three-point bending test.Materials and Methods: The wires timolium (TIM), titanium molybdenum (ORG), beta titanium (BETA), resolve (RES), titanium molybdenum alloy (TMA), and TMA low friction (TMAL) were adapted into two stainless steel brackets, with no angulation or torque. Both brackets were bonded to an acrylic jig with a 10-mm interbracket distance. A testing machine (Instron) applied deflections of 0.2 to 2.0 mm. Force-deflection diagrams were determined from a passive position to an activation of 2 mm and then during deactivation. Forces of activation and deactivation at a deflection of 1 mm were compared by analysis of variance.Results: Results demonstrated that significant differences (P < .05) in force were observed among wires. During activation, forces for the wires were ranked from lowest to highest as TMAL=TMA=RES < ORG=BETA < TIM. During deactivation, forces for the wires were ranked from lowest to highest as TIM < ORG=BETA < RES= TMA < TMAL. The wires exhibited similar activation-deactivation diagrams.Conclusion: This study revealed significant differences in force during activation and deactivation among the six types of beta-titanium wires tested. (Angle Orthod. 2011;81:478-483.)