|
|||||
|
|
| 愈合时间对微型种植体支抗稳定性的影响 | |
| 引用本文： | 冯贻苗,娄新田,房兵,吴勇,毛丽霞,江凌勇,夏韫辉,马志贵. 愈合时间对微型种植体支抗稳定性的影响[J]. 中国口腔颌面外科杂志, 2010, 8(1): 73-78 |
| 作者姓名： | 冯贻苗 娄新田 房兵 吴勇 毛丽霞 江凌勇 夏韫辉 马志贵 |
| 作者单位： | 1. 浙江大学医学院附属第二医院,口腔科,浙江,杭州,310009 2. 上海市浦南医院,口腔科,上海,200125 3. 上海交通大学附属第九人民医院·口腔医学院,口腔颌面外科正畸正颌治疗中心,上海市口腔医学研究所,上海,200011 |
| 摘 要： | 目的：研究在相同力值牵引下，愈合时间对微型种植体支抗稳定性的影响。方法：在8只Beagle犬上颌根间牙槽骨中植入49颗微型种植体支抗，分别在即刻负载、愈合2周、愈合4周、愈合12周后施以150g水平牵引力，定期注射荧光标志物，负载2个月后处死动物。制作种植体-骨的不脱钙硬组织切片．进行荧光显微镜观察、组织形态学测量和推出试验。采用SAS6．12软件包中的单因素方差分析和SNK法分析各组间差异，相关性分析BIC、BSA值与生物力学性能参数的相关性。结果：4组标本的骨结合百分率（bone—to—implant contaet，BIC）和骨充填率（bone stlrface area，BSA）分别为（46．6±2．72）％、（44．08±3．62）％、（17．07±0．63）％、（32．85±3．01）％及（66．39±2．94）％、（64．96±5．11）％、（36．82±0．08）％、（70．33±4．07）％。愈合4周与其他3组之间均有显著性差异。4组标本种植体-骨界面的最大剪切力分别是（270．4±20．36）N、（270．4±6．97）N、（105.8±3．73）N、（335．07±17．22）N。愈合12周组与其他3组之间均有显著性差异。种植体-骨界面的总吸收能量情况与最大剪切力相似。微型种植体的生物力学性能与BSA的相关系数显著高于其与BIC的相关系数（心0．051。结论：愈合12周是一个较为理想的负载前愈合时间。即刻负载和愈合2周负载也可以接受，但必须注意种植体的即刻固位和即刻稳定性。而愈合4周负载则不利于种植体的稳定。 |
| 关 键 词： | 愈合时间 微型种植体支抗 骨整合 稳定性 |
The impact of heeling time on the stability of mini-screw implant anchorage |
|
| FENG Yi-miao,LOU Xin-tian,FANG Bing,WU Yong,MAO Li-xia,JIANG Ling-yong,XIA Yun-hui,MA Zhi-gui. The impact of heeling time on the stability of mini-screw implant anchorage[J]. China Journal of Oral and Maxillofacial Surgery, 2010, 8(1): 73-78 | |
| Authors: | FENG Yi-miao LOU Xin-tian FANG Bing WU Yong MAO Li-xia JIANG Ling-yong XIA Yun-hui MA Zhi-gui |
| Affiliation: | 1.Department of Stomatology, The Second Affiliated Hospital of Medical School of Zhejiang University. Hangzhou 310009, Zhejiang Province; 2.Department of Stomatology, Shanghai Punan Hospital. Shanghai 200125; 3.Department of Oral Maxillofacial Surgery ,College of Stomatology, Ninth People＇s Hospital, Shanghai Jiao Tong University School of Medicine,Shanghai Research Institute of Stomatology.Shanghai 200011, China) |
| Abstract: | PURPOSE:To study the impact of heeling time on the stability of mini-screw implant anchorage by identical loading forces.METHODS:49 mini-screw implants were implanted in the maxillary alveolar bone between the dental roots in 8 Beagle dogs.After heeling 0 week,two weeks,four weeks,twelve weeks,150g forces were loaded and fluorochromes were injected.After two months,the animals were sacrificed and their maxillary alveolar bones were dissected and prepared for fluorescent observation,histomorphometric evaluat... |
| Keywords: | Heeling time Mini-screw implant anchorage MIA Osteointegration Stability |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |