微型支抗种植体即刻加载的组织学研究  

Histological research of immediately loaded micro-implant

作　　者：马俊青[1] 王林[1] 张卫兵[1] 王震东[1] 严斌[1] 

机构地区：[1]南京医科大学口腔医学院正畸科,南京210029

出　　处：《口腔医学》2005年第5期267-269,共3页Stomatology

基　　金：江苏省卫生厅医学科技发展基金资助项目(Z200313)

摘　　要：目的研究微型支抗种植体即刻加载的界面愈合情况。方法微型支抗种植体植入犬下颌骨,施以200 g水平力,定期注射荧光标志物,73 d后处死动物,制作种植体-骨标本切片,进行光镜、荧光镜、偏光镜、软X线片、扫描电镜等观察及X线能谱分析。结果种植体周围形成良好的骨性结合,动态荧光标记显示植入6周时有板层骨形成,9周时板层骨显著。结论微型种植体植入后即刻可承载200 g正畸力而不影响其骨性愈合过程。Objective To study the peri-implant bone reaction to the immediately loaded micro-implant. Methods Micro-implants were implanted into dogs＇ mandibular bones, immediately loaded, with polyfluorochrome sequential labeling. Seventy-three days after implantation, the dogs were euthanized and dissected mandibles were prepared. The specimens were evaluated by light microscope, fluorescent microscope, polarized hght microscope, microradiography, scanning electron microscope and energy dispersive X-ray spectroscope, Results All the resuits suggested that osseointegrated interfaces were formed between micro-implants and bones. Fluorochrome labels hinted that lamellae bones appeared 6 weeks after implantation, and were formed more extensively another 3 weeks later. Conclusion Micro-implants can be loaded immediately and the interfaces have normal turnovers of osseointegration.

关 键 词：微型种植体 支抗 即刻加载 界面 

分 类 号：R783.5[医药卫生—口腔医学]