基于有限元仿真的形状记忆聚合物弓丝初始正畸力分析

doi:10.3969/j.issn.0258-8021. 2016. 02.011

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (8559 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract In orthodontic treatment, metallic arch wire may produce potential toxic effect to human and can not satisfy the aesthetic requirements. In contrast, shape memory polymer (SMP) arch wire has attracted more and more attention for its good mechanical properties and aesthetic appearance. However, shape memory polyurethane (SMPU) as a typical kind of material, its effect in orthodontic treatment, including the force supplied by SMPU wire still remains to be explored. In orthodontic research, the intra-oral evaluation of the force supplied by appliances is difficult to achieve, and finite element method (FEM) has been widely applied as an alternative method. Aiming at these problems, based on the one-dimensional SMP constitutive equation built by Tobushi, a 3D constitutive equation of SMP is derived reference to the standard model of viscoelastic material, and user-defined material mechanical behavior (UMAT) subroutine used for ABAQUS is written by FORTRAN language. From clinical orthodontics data, a 3D model including teeth, brackets and SMPU arch wire were constructed. Taking a maxillary lateral incisor and a canine as examples, through exerting different deformation on arch wire, the initial orthodontic force of arch wire was acquired by FEM simulation. When deflection is 3 mm, the value range is 0.06～0.55N. The results revealed that the initial orthodontic force of SMPU arch wire is somewhat smaller than the optimal orthodontic force required in clinic, and is suitable in the first phase of orthodontic treatment. But the mechanics performances of SMP are still needed to be improved, which will promote a very high potential value on medical application in the future.

Key words： orthodontic force shape memory polymer（SMP） finite element arch wire

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Wu Jianlei¹Liu Yunfeng^1*Peng Wei¹Lin Wenwu¹Xu Lixin²

Cite this article:

Wu Jianlei¹Liu Yunfeng^1*Peng Wei¹Lin Wenwu¹Xu Lixin²
. Initial Orthodontic Force Analysis of Shape Memory Polymer Arch Wire Based on Finite Element Simulation[J]. journal1, 2016, 35(2): 202-210.

URL:

http://cjbme.csbme.org/EN/10.3969/j.issn.0258-8021. 2016. 02.011 OR http://cjbme.csbme.org/EN/Y2016/V35/I2/202

［1］Aziz\|Kerro M, Conroy KG, Fenelon AM, et al. Electrochemical studies on the stability and corrosion resistance of titaniumbased implants materials ［J］. Biomaterials, 2001, 22(12): 1531-1539.
［2］Jung YC, Cho JW. Application of shape memory polyurethane in orthodontic ［J］. Journal of Material Science: Material Medicine, 2010, 21(10): 2881-2886.
［3］Ghosh P, Srinivasa AR. A twonetwork thermomechanical model of a shape memory polymer ［J］, International Journal of Engineering Science, 2011, 49(9): 823-838.
［4］Mccabe JF, Yan Z, Alnaimi OT, et al. Smart materials in dentistryfuture prospect ［J］. Dental Material Journal, 2009, 28(1): 37-43.
［5］Andreas L, Marc B, Bernhard H, et al. Shapememory polymers as a technology platform for biomedical applications ［J］. Expert Review of Medical Devices, 2010, 7(3): 357-379.
［6］Sun Li, Huang Weimin, Ding Zheng, et al. Stimulusresponsive shape memory materials: a review ［J］. Materials and Design, 2012, 33: 577-640.
［7］Tobushi H, Hashimoto T, Hayashi S, et al. Thermomechanical constitutive modeling in shape memory polymer of polyurethane series ［J］. Intelligent Material Systems and Structures, 1997, 8: 711-718.
［8］Tobushi H, Okumura K, Hayashi S, et al. Thermomechanical constitutive model of shape memory polymer ［J］. Mechanics of Materials, 2001, 33: 545-554.
［9］章巧芳，林文武，张钦，等. 热驱动形状记忆聚合物三维力学本构模型［J］. 浙江工业大学学报, 2015, 43(1): 43-46.
［10］张林，段沛沛，陈杨熙. 正畸弓丝形态的研究发展［J］. 国际口腔医学杂志, 2012, 39(2): 273-276.
［11］蒋济雄. 口腔正畸弓丝成形规划及弯制机器人研究［D］. 哈尔滨: 哈尔滨理工大学, 2013.
［12］Zhang Yongde, Jiang Jingang, Lv Peijun, et al. Study on the multimanipulator tootharrangement robot for complete denture manufacturing ［J］. Industrial Robot: an International Journal, 2011, 38(1): 20-26.
［13］吕培军，李国珍. 用数学构成法对牙弓、颌弓几何形态的研究［J］. 中华口腔医学杂志, 1989, 34(2): 76-78.
［14］钱英莉，樊瑜波，蒋文涛. 正畸力作用下牙齿移动的生物力学［J］. 医用生物力学, 2003, 18(3): 189-192.
［15］Varela JC, Velo M, Espinar E, et al. Mechanical properties of a new thermoplastic polymer orthodontic archwire ［J］. Materials Science and Engineering C, 2014, 42: 1-6.
［16］Ni Qingqing, Zhang Chunsheng, Fu Yaqin, et al. Shape memory effact and mechanical properties of carbon nanotube/shape memory polymer nanocomposites ［J］. Composite Structures, 2007, 81(2): 176-184.
［17］Shahrul AA, Aidah J, Nik AR, et al. Determination of shape fixity and shape recovery rate of carbon nanotubefilled shape memory polymer nanocomposites ［J］. Procedia Engineering, 2012, 41: 1641-1646.
［18］Byoung CC, Mi HC, YongChan C. Effect of glycerol crosslinking and hard segment content on the shape memory property of polyurethane block copolymer ［J］. Journal of Material Science, 2007, 42: 6524-6531.