You Position: Home > Paper
Stress analysis of different fixed prosthesis designs following molar hemisection therapy
( views:239, downloads:4 )
- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF STOMATOLOGY
- Issue:
- 7
- DOI:
- 10.3760/j.issn:1002-0098.2007.07.004
- Key Word:
- 牙应力分析;义齿,局部,固定;磨牙
Abstract： 目的 研究不同修复设计对下颌第一磨牙远中残根应力的影响,筛选出最佳的修复方案.方法 用有限元和光弹应力分析方法,模拟|￣6近中根拔除,远中根保留,分别采用|￣6单冠、|￣67联冠、|￣56联冠、|￣567联冠修复,比较相同载荷条件下|￣6远中根的应力状况.结果 与正常|￣6的牙周应力相比,|￣6远中根在 |￣6单冠修复时应力增大3倍以上,|￣67联冠修复时应力增为两倍左右,|￣56联冠和|￣567联冠修复时应力均接近正常值.结论 |￣6远中残根可采用|￣56联冠和|￣567联冠修复.
- [1]袁志萍,张晔缨,李红梅,等.牙齿半切技术在磨牙保存治疗中的应用研究[J].2003,(8).
- [2]贾骏,段嫄嫄,张少锋,等.基牙不同倾斜角度对固定义齿牙周应力分布的影响[J].2006,(13).
- [3]张晔缨,李师勇.牙根纵裂牙的修复治疗[J].2000,(3).
- [4]主编马轩祥.口腔修复学[M].2003.
- [5]Wagner A,Krach W,Schicho K,etc.A 3-dimensional finite-element analysis investigating the biomechanical behavior of the mandible and plate osteosynthesis in cases of fractures of the condylar process.[J].2002,94(6).
- [6]大连工学院数理力学系光测组编著.光弹性实验[M].1978.
- [7]Toparli M.Stress analysis in a post-restored tooth utilizing the finite element method.[J].2003,30(5).
- [8]Gregori M, Kurtzman,Lee H, Silverstein,Peter C, Shatz.Hemisection as an alternative treatment for vertically fractured mandibular molars.[J].2006,27(2).