| SJ—1型插销式附着体义齿支持组织的应力分析Ⅱ基牙牙槽骨不同程？… |
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| 引用本文： | 郑元俐,陈笠.SJ—1型插销式附着体义齿支持组织的应力分析Ⅱ基牙牙槽骨不同程？…[J].上海口腔医学,1999,8(2):104-106. |
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| 作者姓名： | 郑元俐 陈笠 |
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| 摘 要： | 目的 观察ＳＪ－１型插销式附着体用于牙列末端游离缺损磨牙缺失修复时，基牙牙周组织伴有不同程度吸收对支持组织应力分布的影响。方法 采用有限元分析法。结果 基牙牙周组织吸收导致支持组织应力增加，但其分布形式没有改变。结果 当第一双尖牙牙周组织的吸收大于第二双尖牙，且吸收不超过３０％，仍可作为首选基牙。
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| 关 键 词： | 有限元法 附着体 可摘局部义齿 应力 |
Effect of the abutments with reduced periodontal support on stress distribution of support tissue] |
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| Y L Zheng,L Chen,F Q Zhang,C T Wang.Effect of the abutments with reduced periodontal support on stress distribution of support tissue][J].Shanghai Journal of Stomatology,1999,8(2):104-106. |
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| Authors: | Y L Zheng L Chen F Q Zhang C T Wang |
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| Institution: | Department of Prosthodontics,School of Stomatology, Shanghai Second Medical University. Shanghai 200011,China. |
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| Abstract: | OBJECTIVE:This study applied finite element analysis (FEA) compared stress distribution characteristics of mandible,bilateral,SJ-1 bolt(extracoronal) distal extension attachment prostheses when the abutments were subject to eight different loss of periodontal support.METHODS:Finite element analysis.RESULTS:It was shown that periodontal support loss results in increased stress of the terminal abutment tooth without sudden changes.CONCLUSION:Compared favorable stress distribution result from splinted compromised abutment,and the first premolar periodontal support loss less than that of the second premolar and this loss below 30%. |
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