基于有限元分析的玻璃纤维增强复合树脂固定局部义齿的优化设计：垂直增强厚度对纤维支架的影响

Optimum design for fixed partial dentures made of hybrid resin with glass fiber reinforcement by finite element analysis: effect of vertical reinforced thickness on fiber frame.

作者信息

Ootaki Masayuki, Shin-Ya Akikazu, Gomi Harunori, Shin-Ya Akiyoshi, Nakasone Yuji

机构信息

Department of Crown and Bridge, School of Life Dentistry at Tokyo, The Nippon Dental University, 1-9-20 Fujimi Chiyoda-ku, Tokyo 102-8159, Japan.

出版信息

Dent Mater J. 2007 Mar;26(2):280-9. doi: 10.4012/dmj.26.280.

DOI:10.4012/dmj.26.280

PMID:17621946

Abstract

By means of finite element analysis, the optimal thickness of fiber framework placed in a fiber-reinforced composite bridge replacing the mandibular first molar was obtained. Test results demonstrated that more than 30% maximum principal stress was reduced by reinforcing with fiber framework in a thickness of up to 0.6 mm for 1.5-mm occlusal clearance. Indeed, maximum principal stress generated in lower embrasure of connectors was reduced from 107 MPa to 70 MPa by maximizing reinforcement effect.

摘要

通过有限元分析，得出了用于替代下颌第一磨牙的纤维增强复合材料桥中纤维框架的最佳厚度。测试结果表明，对于1.5毫米的咬合间隙，采用厚度达0.6毫米的纤维框架进行增强可使最大主应力降低30%以上。实际上，通过最大化增强效果，连接体下部缝隙处产生的最大主应力从107兆帕降低至70兆帕。