钛涂层317L接骨板螺钉与放射骨界面的光镜观察  

Microscopic Observation of Bone Interface between Titanium Coated 317L Plate Screw and Radiated Mandible

作　　者：李少萍[1] 殷学民[1] 朱明仁[1] 

机构地区：[1]第一军医大学南方医院口腔科,广州510515

出　　处：《生物医学工程与临床》2000年第2期82-84,共3页Biomedical Engineering and Clinical Medicine

基　　金：军队医药卫生科研基金(1991~1995)资助课题

摘　　要：目的：光镜现察钛涂层３１７Ｌ接骨板螺钉与放射骨界面。方法：钛涂层３１７Ｌ接骨板螺钉植入经９ＭｅＶ电子线照射３０Ｇｙ后４周的犬右下颌骨体部作为实验组，以未喷涂钛层的３１７Ｌ接骨板螺钉作为对照组。术后３、６、１２周用光镜观察接骨板螺钉与放射下颌骨界面。结果：钛涂层３１７Ｌ接骨板螺钉与骨面呈骨整合界面结合关系，新骨形成快；未喷涂钛层的３１７Ｌ接骨板螺钉与骨面呈纤维性界面结合关系，新骨形成缓慢，有一厚纤维组织层。结论：在犬下颌部照射３０Ｇｙ相同条件下，钛涂层３１７Ｌ接骨板螺钉生物相容性明显优于未喷涂钛层３１７Ｌ接骨板螺钉。Titanium - coated 317L stainless steel plate screws were implanted into the right mandibular body of dogs receiving 30 Gy radiation with 9MeV electronic beam during four weeks previously. The Un-coated 317L plate screws were used in control group. The bone interface between the screw and the host hone was observed with the light microscope in 3 rd, 6th and 12th weeks postoperatively. The result showed that there was bone intergrated interface between titanium - coated screw and host bone with active new bone formation. In the control group, there was fibrous interface between titanium - uncoated screw and host bone, and the formation of new bone was very slow. These facts indicated that the tissue compatibility of titanium coated 317L plate screw was better than that of uncoated 317L plate screw.

关 键 词：接骨板 螺钉 骨界面 放射 光镜观察 新骨形成 照射 纤维组织 

分 类 号：R783.1[医药卫生—口腔医学]