中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (33): 4919-4925.doi: 10.3969/j.issn.2095-4344.2016.33.008

• 口腔组织构建 oral tissue construction • 上一篇    下一篇

DamonQ自锁系统中运用双丝技术的转矩力学性能有限元分析

王亚楠,瞿  杨,何  淞,黄思源,杨四维,黄  跃   

  1. 西南医科大学附属口腔医院,四川省泸州市  646000
  • 收稿日期:2016-05-22 出版日期:2016-08-12 发布日期:2016-08-12
  • 通讯作者: 黄跃,博士,副教授,西南医科大学附属口腔医院,四川省泸州市 646000
  • 作者简介:王亚楠,女,1985年生,天津市人,汉族,2013年泸州医学院毕业,硕士,医师,主要从事口腔生物力学研究。
  • 基金资助:

    国家自然科学基金青年基金项目(81300903);四川省医学会青年课题基金(川学会医字[2016]2号Q15017)

A finite element analysis of torque capabilities of the DamonQ system using the double wire technique

Wang Ya-nan, Qu Yang, He Song, Huang Si-yuan, Yang Si-wei, Huang Yue   

  1. Hospital of Stomatology, Southwest Medical University, Luzhou 646000, Sichuan Province, China
  • Received:2016-05-22 Online:2016-08-12 Published:2016-08-12
  • Contact: Huang Yue, M.D., Associate professor, Hospital of Stomatology, Southwest Medical University, Luzhou 646000, Sichuan Province, China
  • About author:Wang Ya-nan, Master, Physician, Hospital of Stomatology, Southwest Medical University, Luzhou 646000, Sichuan Province, China
  • Supported by:

    the Young Scientists Fund of the National Natural Science Foundation of China, No. 81300903; Special Program for the Youth from the Medical Association of Sichuan Province of China, No. Q15017

摘要:

文章快速阅读:

文题释义:
有限元分析法:是一种用于求解微分方程组或积分方程组数值解的数值技术。利用数学近似的方法对托槽和弓丝模型的转矩位移进行模拟,从数字化的实验中相对真实体现DamonQ运用双丝技术的转矩力学的情况。
双丝系统:是基于DamonQ托槽设计特点,在其辅助性水平槽沟中加入辅弓丝,与DamonQ托槽主弓丝联合形成双丝系统。与传统托槽的单丝系统仅有2个受力点不同,DamonQ双丝系统有4个受力点,因而组成了一个受力平面,此平面为近似与托槽滑盖平行的矩形平面。这是DamonQ托槽与单一槽沟托槽之间最大的力学性状区别。
摘要
背景:
在正畸临床治疗中,常用双丝技术矫正前牙转矩,但其力学机制尚不明确。
目的:通过三维有限元方法研究DamonQ系统的转矩力学性能及其受双丝因素影响的规律。
方法:建立DamonQ托槽和不同尺寸弓丝的三维有限元模型,并根据不同尺寸弓丝组合进行分组。分析不同材质、尺寸弓丝组合下的转矩力学性能。
结果与结论:①在装配不同尺寸与材质弓丝的条件下,单、双丝Damon Q托槽产生了相同变化规律的转矩力矩/转矩角度曲线图:随着转矩角度的增大,转矩力矩逐渐增加;②单方丝与不同双丝转矩力比较:方-圆双丝转矩力最大,其次是单方丝,再次是圆-圆双丝;方-圆双丝力矩值为圆-圆双丝的2-8倍,单方丝为圆-圆双丝的1-5倍;③DamonQ系统中方-圆双丝转矩效能强于单方丝;④临床上在前牙区控根初期,可考虑圆-圆双丝辅助控根,矫治中期使用方-圆双丝控根,力值柔和可减少根吸收;⑤该研究为DamonQ托槽在临床上应用双丝技术奠定了基础。

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程
ORCID: 0000-0001-8578-2088(黄跃)

关键词: 组织构建, 生物力学, 自锁托槽, 弓丝尺寸与材质, 双丝, 三维有限元, Damon系统, 辅助性水平槽沟, 前牙转矩, 片段弓丝, 国家自然科学基金

Abstract:

BACKGROUND: In the orthodontic treatment, double wire technique is commonly used to correct the torque of anterior teeth; however, the underlying mechanical mechanisms remain unclear.
OBJECTIVE: To study the torque capabilities of DamonQ system through the three-dimensional finite element method.
METHODS: Three-dimensional finite element models of Damon Q brackets with different dimension arch wires were established and were grouped according to arch wire with different dimensions. The torque capabilities of Damon Q system with different dimensions and materials arch wire were analyzed.
RESULTS AND CONCLUSION: The Damon Q brackets with single or double wires had the same variation of torque, torque angle curve changes under the condition of different size and material arch wires. Torque moment increased gradually with increasing torque angle. Rectangular-round double wires produced larger torque moment compared with single rectangular wire, whereas double round wires produced smaller torque moment compared with single rectangular wire. The torque moment produced by rectangular-round double wires or by single rectangular wire was approximately 2-8 times or 1-5 times more than that by double round wires. The torque moment that rectangular-round double wires produced was larger than that single wire produced in the DamonQ system. In the early clinical practice, we can use double round wires to control root movement. In the middle-term of the treatment, we can use rectangular-round double wires to control root movement as the mild forces produced by them reduce root absorption. This study lays a foundation for the application of Damon Q bracket with double wire technology in the clinic.

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程

Key words: Orthodontic Wires, Torque, Finite Element Analysis, Tissue Engineering

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