纯钛种植体-骨界面的高分辨透射电镜及电子衍射观察

High voltage transmission electron microscope and X-ray double-crystal diffractometer observation of pure titanium implant-bone interface

目的探明高分辨透射电镜(HVTEM)下纯钛种植体-骨界面的结合形貌及钛-骨组织的电子衍射表现。方法采用低温离子减薄制片技术,用 Phlips EM-430和 X 射线双晶衍射仪进行观察分析。结果界面上大小不一高电子密度的钙球或一片钙化骨组织与钛融合为一体。钛周围骨组织是呈双向性生长。结论钛-骨结合十分紧密,没有间隙。文中对钛-骨结合形式及影响骨整合的因素进行了进一步探讨。

Objective To examine the integration of pure titanium implant and bone tissue.Meth- ods Using low temperature dualion mill technique,the interface of titanium implant and bone was exam- ined with high voltage transmission electron microscope and X-ray double crystal diffractometer.Results It was shown that calium globules of various electron density or sheets of calcified osseous tissue blended with titanium at the interface.The bone had grown in two directions.Conclusion The integration of pure titanium implant and bone tissue is good,leaving no gap at their interface.