| 国产微型钛钉正畸支抗即刻负载稳定性的实验研究 |
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| 引用本文： | 熊国平,孙昕,张国志,张国权,任康雄,陈秀婷. 国产微型钛钉正畸支抗即刻负载稳定性的实验研究[J]. 中国口腔种植学杂志, 2006, 11(1): 13-16 |
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| 作者姓名： | 熊国平 孙昕 张国志 张国权 任康雄 陈秀婷 |
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| 作者单位： | 518020,暨南大学第二附属医院深圳市人民医院口腔医学中心 |
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| 基金项目： | 广东省深圳市科技局科研项目 |
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| 摘 要： | 目的:评估国产微型钛钉种植支抗即刻负载稳定性。方法:随机选择犬下颌骨的一侧为实验组即加力组,另一侧为对照组即不加力组,植入国产微型钛钉各两颗。实验组钛钉间施力200克。三个月后处死动物,分别测量实验组、对照组钛钉间的位移变化及种植体—骨界面剪切力。结果:实验组钛钉间位移平均减少0.47mm;对照组几无变化;实验组种植体-骨界面剪切力明显大于对照组,平均为367.42牛顿。结论:国产微型钛钉作为种植支抗可满足临床要求。
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| 关 键 词： | 微型钛钉 支抗 剪切强度 |
| 文章编号： | 1007-3957(2006)11-01-13-4 |
An Experimental Evaluation on the Stability of Homemade Titanic Miniscrew as an Orthodontic Anchorage Loaded Immediately |
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| XIONG Guoping, SUN Xin, ZHANG Guozhi,et al. An Experimental Evaluation on the Stability of Homemade Titanic Miniscrew as an Orthodontic Anchorage Loaded Immediately[J]. Chinese Journal of Oral Implantology, 2006, 11(1): 13-16 |
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| Authors: | XIONG Guoping SUN Xin ZHANG Guozhi et al |
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| Affiliation: | The Second Affiliated Hospital of Jinan University, Shenzhen 518020 |
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| Abstract: | Objective:Toevaluate the stabilityofhomemade titanic miniscrewas anOrthodontic anchorage loaded imme-diately.Methods:16homemade titanic miniscrews were inserted in the baccal posterior region of the lower jaw of four dogs.The control group(no force loaded)and the experimental group(200g-forces loaded immediate-ly)were divided randomly.The changes of distances between the miniscrews of both groups were measured re-spectively after3-month force application period.The shear bone strength of the interface between miniscrew and bone in each group was also measured with a push test.Results:The mean changes of distances between2miniscrews in the experimental group was0.47mm and nearly0.00mm in the control group;the shear bone strength of the experimental group,with an average level of367.42N,was significantly higher than the control group one.Conclusion:The homemade titanic miniscrewcan serve as an orthodontic anchorage loaded immedi-ately. |
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| Keywords: | Miniscrew Anchorage Shear bone strength |
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