| 固定桥基牙牙槽骨的光弹应力分析——斜向加载 |
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| 引用本文： | 赵云凤,魏治统,杜传诗,杨光海,叶德临.固定桥基牙牙槽骨的光弹应力分析——斜向加载[J].四川大学学报(医学版),1987(1). |
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| 作者姓名： | 赵云凤 魏治统 杜传诗 杨光海 叶德临 |
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| 作者单位： | 华西医大口腔医学研究所
(赵云凤，魏治统，杜传诗)，核工业部第九研究院四所
(杨光海)，成都科技大学生物医学中心(叶德临) |
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| 摘 要： | 采用低弹性模量的环氧树脂材料模拟牙周膜,并改进了实验装置,使实验模拟更接近人体的实际情况。对斜向30°受载的两基牙固定桥和三基牙固定桥基牙牙槽骨的受力情况进行分析,得到了定量分析的结果。
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| 关 键 词： | 光弹实验 固定桥 基牙牙槽骨 斜向加载 |
PHOTOELASTIC ANALYSIS OF STRESS ON ALVEOLAR BONE OF ABUTMENT OF FIXED BRIDGE UNDER OBLIQUE LOADING |
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| Zhao Yunfeng,Du Chuanshi,Wei Zhitong,Yang Guanghai,Ye Delin Institute of Stomatology The Ninth Research Institute of Ministry of Nuclear Industry Centre of Biomedical Engineering of Chengdu University of Science and Technology.PHOTOELASTIC ANALYSIS OF STRESS ON ALVEOLAR BONE OF ABUTMENT OF FIXED BRIDGE UNDER OBLIQUE LOADING[J].Journal of West China University of Medical Sciences,1987(1). |
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| Authors: | Zhao Yunfeng Du Chuanshi Wei Zhitong Yang Guanghai Ye Delin Institute of Stomatology The Ninth Research Institute of Ministry of Nuclear Industry Centre of Biomedical Engineering of Chengdu University of Science and Technology |
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| Institution: | Zhao Yunfeng;Du Chuanshi;Wei Zhitong;Yang Guanghai;Ye Delin Institute of Stomatology The Ninth Research Institute of Ministry of Nuclear Industry Centre of Biomedical Engineering of Chengdu University of Science and Technology |
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| Abstract: | We have made a photoelastic experi-mental study on the stress in alveolar boneof fixed bridge abutments.Distribution ofthe stress and the isochromatic fringe ofabutments were obtained.Two-dimensionalphotoelastic analysis was used for examin-ing the stress on the alveolar bone of fixedbridge abutments in vertical loading. In this paper analysis of photoelasticstress is applied for fixed bridge,loadingat an angle of 30 degrees to the long axisof the tooth.The models and simulationof this experiments were the same as invertical loading experiment.The followingcollclusions were reached. 1.Under oblique loading,the bearingtensile stress on the alveolar bone is largerthan the compress stress. 2.Under oblique loading,in compari-son with vertical loading,the value ofstress on the alveolar bone of fixed bridgeallutments is different. 3.When the oblique force is applied,tensile stress on the alveolar bone of twounit abutment fixed bridge is 72.92 kg/cm~2;of three unit abutment fixed bridge is62.51 kg/cm~2;therefore,the design of thelatter is better than the former. |
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| Keywords: | Photoelastic experiment Fixed bridge Alveolar bone of abutment Oblique loading |
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