上海交通大学学报（医学版）

上海交通大学学报（医学版） ›› 2018, Vol. 38 ›› Issue (8): 934-.doi: 10.3969/j.issn.1674-8115.2018.08.013

• 论著·临床研究 • 上一篇    下一篇

新型锚固钉的抗力性分析

周知航 1*，毛懿 1*，陈旭卓 1*，张善勇 1,孙守福 2，甄锦泽 1   

  1. 1. 上海交通大学医学院附属第九人民医院口腔外科，上海 200011；2. 上海交通大学医学院附属同仁医院口腔外科，上海 200336
  • 出版日期:2018-08-28 发布日期:2018-09-11
  • 通讯作者: 张善勇，电子信箱：zhangshanyong@126.com。孙守福，电子信箱：sunshoufu@163.com。甄锦泽，电子信箱：zhenlich@163.com。为共同通信作者。
  • 作者简介:周知航（ 1994—），男，硕士生；电子信箱： zhihangz@126.com。毛懿（1994—），男，硕士生；电子信箱： 394736444@qq.com。陈旭卓（ 1994—），男，硕士生；电子信箱： cxzzxcaa@126.com。*为共同第一作者。
  • 基金资助:
    上海市科学技术委员会科技创新行动计划生物医药领域科技支撑项目（ 16441908800）；上海市教育委员会高峰高原学科建设计划（ 20152226）；上海交通大学医学院附属第九人民医院临床研究助推计划（JYLJ037）

Resistance ability analysis of improved anchor screw

ZHOU Zhi-hang1*, MAO Yi1*, CHEN Xu-zhuo1*, ZHANG Shan-yong1, SUN Shou-fu2, ZHEN Jin-ze1   

  1. 1. Department of Stomatology, Shanghai Ninth Peoples Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China; 2.Department of Stomatology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
  • Online:2018-08-28 Published:2018-09-11
  • Supported by:
    Foundation of Science and Technology Committee of Shanghai Municipality, 16441908800; Shanghai Municipal Education Commission— Gaofeng Clinical Medicine Support, 20152226; Clinical Research Program of Shanghai Ninth Peoples Hospital, Shanghai Jiao Tong University School of Medicine, JYLJ037

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摘要： 目的 ·对新型锚固钉及其抗力性进行评估。方法 ·实验包括拉力测试和有限元分析 2个部分。在第一个部分，分别将传统锚固钉和新型锚固钉植入髁突皮质骨，使用拉力机对其进行拉力测试；第二个部分，建立植入新型锚固钉后的下颌髁突三维有限元模型，并从 3个不同方向施加力的作用，进行三维有限元分析。结果 ·三维有限元分析表明，传统锚固钉和新型锚固钉所能承受的最小拔出力分别为 48.2 N和 200.0 N；配合 3-0缝线使用的传统和新型锚固钉在抗拉强度上比较，差异具有统计学意义（ P0.033）；此外， 3-0缝线的传统锚固钉与 2-0缝线的新型锚固钉相比，差异也具有统计学意义（P0.000）。结论 ·相比传统锚固钉，新型锚固钉抗力性能更佳，配合使用 2-0缝线时尤其明显。

关键词: 颞下颌关节锚固术, 下颌髁突, 锚固钉, 锚固线, 张力测试, 有限元分析

Abstract:

Objective · To estimate resistance ability of improved anchor screw. Methods · The experiment consisted of two sections: tensile test and finite element analysis (FEA). In the first part, the traditional anchor screw and the improved anchor screw were implanted into the condylar cortical bone, respectively, tensile force was testedtension machine. In the second part, the three-dimensional finite element model of mandibular condyle was established after the improved anchor screw was implanted, and the FEA was performedthe force applied three different directions. Results · The FEA results revealed the minimum force of the traditional and improved anchor screws were 48.2 N and 200.0 N, respectively. The tensile strengths of the traditional and improved anchor screws with a 3-0 suture were significantly different (P0.033). The difference between the traditional anchor screw (3-0 suture) and the improved anchor screw (2-0 suture) were significantly different (P0.000). Conclusion · Compared with traditional screw, improved anchor screw has better resistance ability, especially combined with 2-0 suture.

Key words: temporal mandibularjoint anchorage, mandibular condyle, anchorscrew, suture, tensile test, finite element analysis (FEA)

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