缓冲型圆锥型套筒冠的位移与应力分析  

BIOMECHANICAL RESEARCH OF BUFFER-TYPE CONICAL TELESCOPIC CROWN

作　　者：张富强[1] 杨宠莹[1] 薛淼[1] 阎巧梅[1] 熊焕国[1] 

机构地区：[1]上海第二医科大学口腔医学院,上海第二工业大学

出　　处：《医用生物力学》1996年第3期171-174,共4页Journal of Medical Biomechanics

摘　　要：采用有限元法对缓冲型圆锥型套筒冠固位体的缓冲间隙与义齿支持组织位移与应力分布进行研究，结果表明，加载力在１３０Ｎ前义齿支持组织中基托下组织应力值明显大于牙周组织，当加载达１３０Ｎ后，固位体内外冠面间隙消失，基牙牙周支持组织应力明显增加，义齿的二种支持组织应力差值减少。Researches have been done on buffer space of buffer type conical telescopic crown retainer as well as displacement of denture support tissues and stress distribution by means of finite element analysis.The result shows that the stress value of subbasal tissues apparently surpassed that of periodontal tissues when the loadr was within 130N,However,after the loading force reaching 130N,the occlusal space between internal & external crown of retainers dissappeared.The stress value of abutment pesiodontal support tissues increased obviously and the differential value of stress between these two kind of support tissues of denture decreased.

关 键 词：缓冲型 圆锥型 套筒冠 有限元 He位移 应力 

分 类 号：R783.3[医药卫生—口腔医学] R318.01[医药卫生—临床医学]