中国组织工程研究与临床康复2011，Vol.15Issue(4)：625-628,4.DOI:10.3969/j.issn.1673-8225.2011.04.013
栓钉式游离牵引钩与传统游离牵引钩的机械力学对比
Torsional stability of innovative versus traditional split crimpable hooks
摘要
Abstract
BACKGROUND: Traction is a method generally used in orthodontic treatment by which the movement of teeth can be manipulated. However, the split crimpable hooks currently used appear to unwished slide sometimes, due to insufficient resistance, which cannot achieve the en-mass movement of teeth.OBJECTIVE: To develop a new type of archwire hook assembly (uncrimpable split hook with pin) and to compare the torsional stability with traditional split hook.METHODS: The new archwire hooks composed of split box-form body, hook and pin were designed and manufactured. A total of 30 innovative archwire hooks and 30 traditional AO split hooks were respectively attached to a 0.019 × 0.025-inch stainless steel archwire. The archwire/hook attachment assembly was fitted into a dual contact jig and securely mounted to the base of a universal testing machine. The force that required to dislodge the hooks on the archwire was measured. The resistance of dislodgement of two hooks was compared.RESULTS AND CONCLUSION: The mean forces required to dislodge the hooks measured in newtons (N) were as follows: new archwire hooks (22.37±9.06) N, traditional split crimpable hooks (4.96±0.70) N. The new archwire hooks provide more resistance to torsional dislodgement from a rectangular stabilizing archwire than traditional split crimpable hooks.关键词
游离牵引钩/加载/移位/机械力学/固位分类
医药卫生引用本文复制引用
刘克瑾,吉利,黎炽彬,黄代营,钟小龙..栓钉式游离牵引钩与传统游离牵引钩的机械力学对比[J].中国组织工程研究与临床康复,2011,15(4):625-628,4.基金项目
广东省科技计划项目(2009B060700043),项目名称:上下颌骨内埋伏前牙的研究与治疗. （2009B060700043）
