摘要
将钛涂层３１７Ｌ接骨板植入电子线照射的犬右下颌骨体部，用透射电镜（ＴＥＭ）观察相邻骨膜超微结构变化，结果显示，钛涂层３１７Ｌ接骨板组相邻骨膜超微结构损伤比未喷涂钛层的３１７Ｌ接骨板对照组轻微。可能与未喷涂钛层的３１７Ｌ接骨板所释放出来的毒性较大的Ｃｒ、Ｎｉ离子对组织细胞的再损伤有关，而钛涂层３１７Ｌ接骨板表面呈纯钛相。
Titanium coated 317L stainless steel plates were implanted onto the right side of the mandibular body of dogs which were received radiation with electronic beam. The ultrastructures of the adjacent periosteum were observed with transmission electron microscope. The results showed that the ultrastructural injury was slighter in the titanium coated 317L Plate group than the uncoated 317L Plate control group. It may be related to more poisonous Cr and Ni ions which released from the 317L Plates, and produce the double harmful to the injuried cells, while the titanium coated 317L Plates had pure titanium surface and may not damage the ultrastructure of the cells.
出处
《中山医科大学学报》
CSCD
1997年第4期282-284,共3页
Academic Journal of Sun Yat-sen University of Medical Sciences
基金
军队医药卫生科研基金
关键词
钛
骨板
下颌修复术
骨膜
超微结构
辐射损伤
titanium/therapeutic use
bone plates
mandibular prosthesis
periosteum/ultrastructure
radiation injuries/prevention & control
