碳纤维增强碳及其与羟基磷灰石复合种植体骨界面  

Implantation of C/C and CCH to Bone Interface

作　　者：滕伟[1,2] 米乃元 李彦 郑岳华[1,2] 

机构地区：[1]中山医科大学光华口腔医院 [2]华南理工大学无机材料系

出　　处：《中山医科大学学报》1999年第1期42-44,共3页Academic Journal of Sun Yat-sen University of Medical Sciences

基　　金：广东省自然科学基金

摘　　要：目的：采用碳纤维增强碳复合材料（ｃａｒｂｏｎｆｉｂｅｒｒｅｉｎｆｏｒｃｅｄｃａｒｂｏｎ，Ｃ／Ｃ）与羟基磷灰石（ｈｙｄｒｏｘｙａｐａｔｉｔｅ，ＨＡ）复合形成新型种植体（ＣＣＨ），研究它们与骨结合界面的性质，为开发新型种植体提供实验依据。方法：将Ｃ／Ｃ和ＣＣＨ种植体植入１４只兔胫骨内，分别于术后４、８、１６周处死动物。对种植体骨界面作扫描电镜观察、Ｘ线能谱分析。结果：扫描电镜观察到１６周时Ｃ／Ｃ、ＣＣＨ与植床骨组织结合紧密，未见胶原纤维，ＣＣＨ孔内的ＨＡ部分被吸收，有骨组织长入。Ｘ线能谱结果表明Ｃ／Ｃ、ＣＣＨ种植骨界面处有Ｃａ、Ｐ元素的富集。结论：Ｃ／Ｃ。Objective: Research the interface between C/C (carbon fiber reinforced carbon),CCH(fusional material of C/C and hydroxyapatite)implant and bone in the aim of providing experimental basis for developing a new dental implant. Methods: C/C and CCH implants were implanted the tuba of 14 rabbits which were killed at 4th,8th,16th week.The interface between implant and bone were observed with scanning electron microscope(SEM)and X ray energy spectrum analysis(EDAX). Results: Under SEM,the implant bone interface of C/C and CCH was osseointegration,collaginous fibre was not found at 16th week,hydroxyapatite(HA) on the CCH implant surface was partly absorbed,new bone has grown into HA holes.Through EDAX:Ca,P element gathers at the interface of C/C and CCH implant. Conclusion: C/C、CCH have osseously integrated the interface with the bone.

关 键 词：碳纤维 羟基磷灰石 牙科材料 骨界面 种植体 

分 类 号：R783.1[医药卫生—口腔医学] R782.12[医药卫生—临床医学]