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V形曲力学性能的三维有限元分析 被引量:1

Mechanical properties of V-bends with finite element analysis
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摘要 目的对不同弓丝材质、尺寸、角度、形状、托槽间距的V形曲进行有限元力学分析,为V形曲的临床应用提供理论参考。方法建立两种材质(不锈钢弓丝、β钛丝)、两种尺寸(0.43 mm×0.64 mm、0.48 mm×0.64 mm)、两种V形曲位置、两种角度(150°、165°)和两种托槽间距(7、10 mm)的V形曲有限元模型,进行模拟加载后,对比分析其力学性能。结果不锈钢弓丝材质V形曲产生的最大作用力值均大于β钛材质V形曲,0.43 mm×0.64 mm弓丝弯制的V形曲作用力均小于0.48 mm×0.64 mm组,对称型V形曲受弓丝尺寸变化更为明显,托槽间距变化对非对称型V形曲作用力力值的影响更为明显。在V形曲形状相同时,V形角度越小,其各托槽作用力越大。结论弓丝材质尺寸、角度形状及托槽间距的改变均能影响V形曲力学行为。在临床应用中,可以根据托槽间距的大小,对V形曲弓丝材质尺寸、角度形状进行选择。 Objective To analyze the mechanical properties of V-bends with different materials,sizes of arch wires,angles,shapes,inter-bracket distances by using finite element method,so as to provide references for clinical practice of V-bends. Methods The finite element models of V-bends were established,including two kinds of materials( stainless steel,titanium-molybdenum alloy),two sizes( 0. 43 mm × 0. 64 mm,0. 48 mm × 0. 64 mm),two Vbend positions,two angles( 150°,165°),and two inter-bracket distances( 7,10 mm),so as to compare and analyze their mechanical properties after simulative loading. Results The maximum force values produced by V-bends with stainless steel arch wire were greater than that of V-bends with β titanium steel arch wire. The force produced by V-bends with 0. 43 mm × 0. 64 mm arch wire was smaller than that produced by V-bends with 0. 48 mm× 0. 64 mm arch wire. The size of arch wire had a more obvious impact on V-bends with symmetrical arch wire.The force of V-bends with asymmetric arch wire was more evidently influenced by the change of inter-bracket distance. For V-bends with the same shape,the smaller the V-shaped angle,the greater the force on the bracket would be. Conclusions The V-bends with different materials,different sizes of arch wires,different shapes and inter-bracket distances will have different mechanical behaviors. In clinical application,the materials,sizes of arch wires,shapes and angles of V-bends should be adjusted properly according to the inter-bracket distances.
出处 《医用生物力学》 EI CAS CSCD 北大核心 2016年第1期56-60,72,共6页 Journal of Medical Biomechanics
基金 国家自然科学基金项目(81300903) 厅、市、校联合基金(2014TSX-0060) 四川省科技厅国际合作项目(2012HHZ001) 川人社办发[2015]93号(编号31)
关键词 有限元分析 V形曲 力学特性 Finite element analysis V-bend Mechanical properties
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参考文献10

  • 1Raja S. Three-Dimensional force systems produced by vertical V-bends in an arch wire [ D]. Connecticut: Univer- sity of Connecticut, 20]2.
  • 2张东升,安兵兵.生物硬组织材料力学研究方法进展[J].医用生物力学,2012,27(2):122-128. 被引量:4
  • 3Techalertpaisarn P, Versluis A. Mechanical properties of Opus closing loops, L-loops, and T-loops investigated with finite element analysis [ J ]. Am J Orthod Dentofacial Orthop, 2013, 143(5) : 675-683.
  • 4Huang Y, Keilig L, Rahimi A, et al. Numerical modeling of torque capabilities of self-ligating and conventional brackets [J]. Am J Orthod Dentofacial Orthop, 2009, 136 (5): 638- 643.
  • 5Huang Y, Keilig L, Rahimi A, et al. Torque capabilities of self-ligating and conventional brackets under the effect of bracket width and free wire length-A numerical study [ J ]. Orthod Craniofac Res, 2012, 15(4)= 255-262.
  • 6罗晨,秦晓中,曾照斌,冯雪.不同部位植入微种植钉进行前方牵引时上颌骨旋转趋势[J].医用生物力学,2015,30(1):38-42. 被引量:14
  • 7张颖,李兴,杨凯,尤力,宋西平.四种Beta钛-正畸弓丝合金成分及力学性能的比较研究[J].北京口腔医学,2011,19(2):61-63. 被引量:6
  • 8Verstrynge A, Van Humbeeck J, Willems G. In-vitro evaluation of the material characteristics of stainless steel and beta-titanium orthodontic wires [ J ]. Am J Orthod Dentofacial Orthop, 2006, 130(4) : 460-470.
  • 9Kojima Y, Fukui H. A numerical simulation of tooth move- ment by wire bending [J ]. Am J Orthod Dentofacial Orthop, 2006, 130(4) = 452-459.
  • 10尤力,宋西平.6种弓丝的摩擦力与其表面粗糙度、弹性模量及硬度的关系[J].稀有金属材料与工程,2012,41(2):294-297. 被引量:14

二级参考文献47

  • 1胡新佳,李康华.腰椎间盘切除与人工椎间盘置换前后上位关节突关节内压力改变[J].中国修复重建外科杂志,2005,19(6):427-430. 被引量:8
  • 2Bartzela TN,Senn C,Wichelhans A.Load-deflection characteristics of superelastic nickel-titanium wires.Angle Orthod,2007,77(6):991-998.
  • 3Burstone CJ,Goldberg AJ.Beta titanium:a new orthodontic alloy.Am J Orthod,1980,77(2):121-132.
  • 4Oliver W C,Pharr GM.An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments J Mater Res,1992,7(6):1564-1583.
  • 5Benatti OF,Mrianda Wg,Muench A.In vitro and in vivo corrosion evaluation of nickel-chromium and copper-aluminum-based alloys J Prnsthet Dent,2000,84(3):360-363.
  • 6Kuhta M,Pavlin D,Slaj M,et al.Type of archwire and level of acidity effects on the release of metal ions from orthodontic appliances.Angle Orthod,2009,79(1):102-110.
  • 7Proffit W R. Contemporary Orthodontics[M]. London: Mosby,2000: 346.
  • 8Yucheng L et al. Am J Orthod Dent Orthop[J],2007,131: 578.
  • 9Robert P Kusy et al. Am J Orthod Dent Orthop[J], 2004, 126: 589.
  • 10Sung Ho Lee et al. Am J Orthod Dent Orthop[J], 2001, 120: 654.

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