Finite element analysis of multi-piece post-crown restoration using different types of adhesives

查看全文 作　　者：Lin-Wei L[1];Guang-Wei [1]Meng;Zhi-Hui [2]Liu

机构地区：[1]Department of Engineering Mechanics, Jilin University;[2]Hospital of Stomatology

出　　处：《International Journal of Oral Science》索引2013年第5卷第3期,共5页

摘　　要：The multi-piece post-crown technique is more effective in restoring residual root than other restoration techniques.Various types of adhesives have different material properties that affect restoration.Therefore,the choice of adhesive is particularly important for patients.However,the effect of different kinds of adhesives was not too precise by experimental methods when concerning about individual differences of teeth.One tooth root can only be restored with one type of adhesive in experiment.After the mechanical test,this tooth root cannot be restored with other adhesives.With the help of medical imaging technology,reverse engineering and finite element analysis,a molar model can be reconstructed precisely and restored using different types of adhesives.The same occlusal and chewing loads were exerted on the same restored residual root models with different types of adhesives separately.Results of von Mises stress analysis showed that the adhesives with low Young’s modulus can protect the root canal effectively.However,a root canal concentration is apparently produced around the root canal orifice when chewing.Adhesives with large Young’s modulus can buffer the stress concentration of the root canal orifice.However,the root canal tissue may be destroyed because the adhesive is too hard to buffer the load. 关键词：ADHESIVE finite element analysis molar restoration multi-piece post-crown STOMATOLOGY

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Finite element analysis of multi-piece post-crown restoration using different types of adhesives

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引证文献(8)

耦合文献(26)

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