口腔疾病防治Issue(3)：137-141,5.DOI:10.12016/j.issn.2096-1456.2016.03.002
转矩拮抗型微种植支抗钉的初期稳定性分析
Initial stability analysis of the torque-resisted orthodontic miniscrew anchorage
摘要
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-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Key words
Miniscrew anchorage/Torque-resisted/Initial stability/Torque analysis/Resonance frequency a-nalysis分类
医药卫生引用本文复制引用
张健娜,常少海,叶玉珊,鲁颖娟..转矩拮抗型微种植支抗钉的初期稳定性分析[J].口腔疾病防治,2016,(3):137-141,5.基金项目
广东省科技计划项目(A002014004) （A002014004）
