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。
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%.
出处
《上海口腔医学》
CAS
CSCD
1999年第2期104-106,共3页
Shanghai Journal of Stomatology
基金
上海市科学技术发展基金
