口腔医学研究

口腔医学研究 ›› 2017, Vol. 33 ›› Issue (11): 1218-1222.DOI: 10.13701/j.cnki.kqyxyj.2017.11.021

• 其他研究 • 上一篇    下一篇

舌侧托槽抗扭转性能的三维有限元分析研究

白蕊1, 韦代伦1, 贺涵2, 吴稀1, 周容1, 黄跃2*   

  1. 1. 西南医科大学 646000 四川 泸州 646000;
    2. 西南医科大学附属口腔医院正畸科 四川 泸州 646000
  • 收稿日期:2016-09-13 出版日期:2017-11-20 发布日期:2017-11-29
  • 通讯作者: 黄跃,电话:13982756506
  • 作者简介:白蕊(1991~ ),女,四川泸州人,硕士在读, 主要从事口腔生物力学研究。
  • 基金资助:
    国家自然科学基金(编号:81300903)
    川大-泸州战略合作项目(编号:2013CDLZ-S22)
    四川省科技厅科研基金项目(编号:川科计[2010]19号2010HH0055)

Three-dimensional Finite Element Analysis of Torsion Performance of Tongue Side Brackets

BAI Rui1, WEI Dai-lun1, HE Han2, Wu Xi1, ZHOU Rong1, HUANG Yue2*   

  1. 1. Southwest Medical University, Luzhou 646000, China;
    2. Department of Orthodontics, Hospital of Stomatology, Southwest Medical University, Luzhou 646000, China
  • Received:2016-09-13 Online:2017-11-20 Published:2017-11-29

PDF (PC)

219

摘要： 目的:运用三维有限元方法,讨论两种槽沟的舌侧托槽作用于远中扭转牙时其力学性能的差异。方法:以装配有不同型号、材质的弓丝以及结扎丝的IncognitoTM、Kurz7th拖槽(A3-B3)有限元模型,进行参数设定及力量加载,最终分析所得数据,绘制曲线图。结果:IncognitoTM托槽0.012英寸弓丝组载荷均为0,其余模型变化规律一致:使用同一根弓丝时Kurz7th托槽最大荷载约为IncognitoTM托槽的10~12倍;同种尺寸弓丝,两种托槽使用澳丝(SS)、β-钛丝(TMA)、镍钛丝(NiTi)最大载荷比值约为3.3︰1.3︰1;同种材质下,载荷随弓丝尺寸增加而增加。结论:在圆丝排齐阶段IncognitoTM托槽改善扭转牙的作用有限,而Kurz7th托槽效果较好,托槽槽沟的长度、宽度、深度均影响了上述结果。

关键词: Kurz7th托槽, IncognitoTM托槽, 槽沟, 三维有限元

Abstract: Objective: To explore the difference between two kinds of lingual brackets with different colpus when loaded torsion force with three dimensional finite element analysis. Method: Three dimensional finite element models were created which included IncognitoTM and Kurz7th brackets from A3 to B3, and assembled with ligature wires and wires of different types and materials. The data were analyzed and graphs of the models were drawn. Results: The load of IncognitoTM was 0 when assembled with 0.012 inch wires, and the other models’ deflection curve of two kinds of lingual brackets was similar. When assembled with the same wire, the max load value of Kurz7th was 10-12 times more than Incognito’s. When assembled with SS, TMA, and NiTi wire, which were the same size but different materials, their max load ratio of two kinds of brackets was 3.3, 1.3, and 1, respectively, and the load deflection curves were the same. When assembled with the wires of the same materials but different size, the load value of brackets increased with increasing size of wires. Conclusion: To correct torsion teeth, IncognitoTM has a limited effect but Kurz7th seems to be a good choice, and the length, width, and depth of two kinds of colpusall have an influence to the results.

Key words: Kurz7th, IncognitoTM, Colpus, 3-D finite element

中图分类号: