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《Chinese Journal of Dental Materials and Devices》 2007-03
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Analysis of stress distribution of implant-tooth-supported fixed bridge for different pontic lengths

Wang Jue1 Su Jiansheng2(1.Shanghai Stomatological Disease Center,Shanghai 200001;2.College of Stomatology,Tongji University)  
Objective This study is to reveal the stress distribution of the fixed bridge supported by tooth and implant for different pontic lengths.Methods By the 3-dimensional finite element,the biomechanical models of the fixed bridge supported by the implant-natural tooth with 3-kind of pontic length were constructed,calculated and analysed.Results The biggest stress was on the neck area of abutments and the bones around them.The biggest stress under the lateral load was more than 2-times bigger than that under vertical load.The larger of the pontic length is the bigger of the stress.Conclusion The main supporting force position is on the neck area,so the oblique force should be reduced and pontic length should not be too long.
【CateGory Index】: R783
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【Citations】
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【Co-citations】
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1 CHEN Er-jun 1,2 , ZHOU Yan-min 1, MA Chen-chun 2,CONG Zhi-qiang 2, JIANG Yong-hua 2 (1. Department of Implantation Center, Stomatology Hospital, Jilin University , Changchun 130041,China;2. Department of Stomatology, No.461 Hospital of PLA,Changchun 130021,China);Stress distribution and displacement of abutment of middle implant-natural teeth fixed bridge under different loading[J];Journal of Jilin University of (Medicine Edition);2004-05
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