| SJ-1型插销式附着体义齿支持组织的应力分析 Ⅱ基牙牙槽骨不同程度吸收对支持组织应力分布的影响 |
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| 引用本文： | 郑元俐,陈笠,张富强,王成焘.SJ-1型插销式附着体义齿支持组织的应力分析 Ⅱ基牙牙槽骨不同程度吸收对支持组织应力分布的影响[J].上海口腔医学,1999(2). |
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| 作者姓名： | 郑元俐 陈笠 张富强 王成焘 |
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| 作者单位： | 上海第二医科大学口腔医学院口腔修复教研室，上海交通大学机械工程学院 |
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| 基金项目： | 上海市科学技术发展基金 |
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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。结论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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| Zheng Yuanli,Chen Li,Zhang Fuqiang,et al..Effect of the abutments with reduced periodontal support on stress distribution of support tissue[J].Shanghai Journal of Stomatology,1999(2). |
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| Authors: | Zheng Yuanli Chen Li Zhang Fuqiang |
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| Institution: | Zheng Yuanli,Chen Li,Zhang Fuqiang,et al.Department of Prosthodontics,School of
Stomatology,Shanghai Second Medical University,Shanghai 200011 |
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| Abstract: | Objective This
study applied finite element analysis (FEA) compared stress distribution characteristics of
mandible,bilateral,SJ1 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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| Keywords: | FEA attachment denture stress |
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