人下颌骨密质骨的复合微动磨损特性研究

被引:1
作者
高姗姗 [1 ]
蔡振兵 [2 ]
朱旻昊 [2 ]
于海洋 [1 ]
机构
[1] 四川大学口腔医学国家重点实验室
[2] 西南交通大学牵引动力国家重点实验室摩擦学研究所
关键词
复合微动; 微动磨损; 磨损机理; 下颌骨密质骨;
D O I
10.15961/j.jsuese.2008.01.021
中图分类号
R783 [口腔矫形学];
学科分类号
100302 ;
摘要
针对牙种植体-密质骨界面的微动损伤,采用球/面接触方式研究人下颌骨密质骨在倾斜角为45°、两种载荷水平下的复合微动磨损行为。在分析复合微动的动力学特性的同时,结合光学显微镜(OM)、激光共聚焦扫描显微镜(LCSM)、扫描电子显微镜(SEM)对磨痕形貌进行分析,对磨屑的成分进行了测定。结果表明,下颌骨密质骨的F-D曲线只有椭圆形和准梯形两种,复合微动最终稳态的F-D曲线均为准梯形;在高载荷的情况下骨组织出现了大量的裂纹及组织碎屑,耗散能则出现了明显的波动;下颌骨复合微动的磨损机制表现为粘着磨损、磨粒磨损、裂纹的扩展及组织碎屑润滑等共同作用的特征。
引用
收藏
页码:96 / 100
页数:5
相关论文
共 15 条
[1]  
Fretting behavior of cortical bone against titanium and its alloy[J] . H.Y. Yu,Z.B. Cai,Z.R. Zhou,M.H. Zhu. &nbspWear . 2005 (7)
[2]  
Dual-motion fretting wear behaviour of 7075 aluminium alloy[J] . M.H Zhu,Z.R Zhou. &nbspWear . 2003 (1)
[3]  
Mixed fretting regime[J] . Z.R. Zhou,L. Vincent. &nbspWear . 1995
[4]  
Determination of thepHof peri-implant crevicular fluid in successful and failingdental implant sites:a pilot study. Nyako E A,Watson C J,Preston A J. Archives of Oral Biol-ogy . 2005
[5]  
Biological factorscontributing to failures of osseointegrated oral implants(Ⅰ):success criteria and epidemiology. Esposito M,Hirsch J M,Lekolm U,et al. European Journal of Oral Sciences . 1998
[6]  
Fretting damage of humancortical bone in transverse orientation against titanium. Yu HY,Cai Z B,Zhou Z R,et al. Key Engineering Materials . 2005
[7]  
Comparative evaluation of the effectof diameter,length and number of implants supportingthree-unit fixed partial prostheses on stress distribution inthe bone. Iplikcioglu H,Akca K. Journal of Dentistry . 2002
[8]  
Experimental procedure for the evaluation of the mechanical properties of the bone surrounding dental implants. Soncini M,Baena RR,Pietrabissa R,et al. Biomaterials . 2002
[9]  
WEAR[P]. CAILLIBOTTE MICHEL;ROUILLER VINCENT PHILIPPE.日本专利:JP2005226217A,2005-08-25
[10]  
WEAR[P]. UEDA SHIGEAKI.日本专利:JPH07300705A,1995-11-14