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An experimental investigation between osseointegration and stability of implants used as orthodontic anchorage in dogs
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF STOMATOLOGY
- Issue:
- 2
- DOI:
- 10.3760/j.issn:1002-0098.2000.02.005
- Key Word:
- 正畸;种植体;骨整合
Abstract： 目的 考察正畸支抗种植体的骨整合与稳定性以及二者之间的关系.方法 将HA涂层钛种植体、钛浆喷涂钛种植体、未涂层钛种植体植入狗股骨,愈合期后施加1.96N正畸力2个月.测量施力后种植体的位置变化和种植体-骨界面的剪切结合强度,用扫描电镜观察界面. 结果 3种种植体位移分别为(-0.50±1.78) mm、(-0.05±1.76)mm、(0.29±1.77) mm,统计学分析结果显示,还不能认为3种种植体出现移动.3种种植体-骨界面的剪切结合强度分别是(2.88±0.55) MPa、(1.89±0.81) MPa和(2.14±0.49) MPa. HA涂层种植体与骨紧密结合,其界面结合强度最高;另外2种种植体与骨的结合强度差异无显著性.结论 虽然HA涂层种植体与骨结合最牢固,但3种种植体-骨界面均可形成骨整合,在常规正畸力作用下不会发生明显移动.本项研究结果表明,种植体可用作短期的正畸支抗.
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