中国口腔种植学杂志2001,Vol.6Issue(1):17-18,25,3.
不同载荷下天然牙一种植牙联合桥基牙应力分布
Stress Distribution on Abutment of Tooth- Implant Fixed Bridge Under Different Loading
胡建军 1周延民 1王志彪 1张理生 1孟维艳 1周振平1
作者信息
摘要
Abstract
To discovery the stress distribution on the abutments of tooth - implant fixed bridge under differ ent loading.Method: By 3- D finite element modeling computed and analyzed .Results: Under oblique loading, stress on the implant was 2 ~ 2.5 times as big as on tooth. There was no significant deviation of the biggest stress on the implant between concentrated oblique loading and oblique dispered loading. The biggest stress on implant under concentrated oblique loading was 2 ~ 2.5 times as big as vertical laoding. Both tooth and implant, the stress under concentrated vertical loading was bigger than under dispersed vertical loading. On the tooth, stress under concentrated oblique loading was bigger than under dispersed oblique loading. Conclusion:The ability of supporting oblique force for tooth- implant fixed bridge is weak. Implant should be of higher strength, tooth root should be stronger, oblique force should be less. Distruction of condentrated loading for abutment is more serious than dispersed loading. The bite points should be well distributed.关键词
种植牙/固定桥/应力Key words
dental-implant/stress/fixed bridge分类
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胡建军,周延民,王志彪,张理生,孟维艳,周振平..不同载荷下天然牙一种植牙联合桥基牙应力分布[J].中国口腔种植学杂志,2001,6(1):17-18,25,3.