Journal of Prevention and Treatment for Stomatological Diseases ›› 2016, Vol. 24 ›› Issue (3): 137-141.DOI: 10.12016/j.issn.2096-1456.2016.03.002

• Special Articles • Previous Articles     Next Articles

Initial stability analysis of the torque-resisted orthodontic miniscrew anchorage

Jian-na ZHANG,Shao-hai CHANG(),Yu-shan YE,Ying-juan LU   

  1. Institute of Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
  • Received:2015-09-02 Revised:2015-10-11 Online:2016-03-31 Published:2016-03-20

转矩拮抗型微种植支抗钉的初期稳定性分析

张健娜,常少海(),叶玉珊,鲁颖娟   

  1. 中山大学孙逸仙纪念医院,广东 广州(510120)
  • 作者简介:张健娜,医师,硕士, Email: zhangjn23@163.com|常少海,口腔科副主任医师,副教授,硕士生导师,现任中山大学孙逸仙纪念医院口腔科正畸专科主任。熟练掌握各种矫治方法,对各种口腔畸形的矫治有较高造诣。曾承担多项省课题研究,发表学术论文61篇,其中SCI 2篇,核心期刊32篇。现为广东省口腔正畸专业委员。科研方向:唇腭裂的序列治疗,婴幼儿的畸形矫正,微种植矫治系统的研制。
  • 基金资助:
    广东省科技计划项目(A002014004)

Abstract:

Objective To compare the initial stability difference between a new designed torque-resisted orthodontic miniscrew anchorage and commercial miniscrew anchorage by torque tests and resonance frequency analysis (RFA). Methods After predrilled 4 mm?deep holes with a diameter of 1.0 mm, two different miniscrews were implanted into the swine ribs for measurement of maximum insertion torque (MIT), maximum removal torque (MRT) and RFA which was recorded as implant stability quotient (ISQ). Statistical analysis was done for all data by SPSS 13.0. Results The mean value of MIT, MRT, ISQ for new miniscrews were (11.86±1.58) N?cm, (8.45±2.24) N?cm and 61.80±2.9 while for commercial miniscrews were (10.36±1.42) N?cm, (6.76±1.78) N?cm and 58.15±2.98. The differences be-more stable than commercial miniscrews.

Key words: Miniscrew anchorage, Torque-resisted, Initial stability, Torque analysis, Resonance frequency analysis

摘要:

目的 使用扭矩分析和共振频率分析比较一种转矩拮抗型微种植支抗钉与商用微种植支抗钉的初期稳定性差异。 方法 以猪肋骨为骨组织模型预成长为4.0 mm,直径为1.0 mm的植入孔,植入两种不同的微种植支抗钉。分别测量最大植入扭矩(maximum insertion torque,MIT)、最大旋出扭矩(maximum removal torque,MRT)、种植体稳定系数(implant stability quotient,ISQ)。使用SPSS 13.0软件对数据进行统计分析。 结果 转矩拮抗型微种植支抗钉的MIT、MRT、ISQ值分别为(11.86±1.58) N·cm、(8.45±2.24) N·cm、61.80±2.93,商用微种植支抗钉的MIT、MRT、ISQ值分别为(10.36±1.42) N·cm、(6.76±1.78) N·cm、58.15±2.98,转矩拮抗型微种植支抗钉的测量结果均大于商用微种植支抗钉,差异具有统计学意义(P<0.05)。 结论 转矩拮抗型微种植支抗钉的初期稳定性优于商用微种植支抗钉。

关键词: 微种植支抗钉, 转矩拮抗, 初期稳定性, 扭矩分析, 共振频率分析