Three-dimensional finite element stress analysis of the mandible first molar under pressure loading
10.3969/j.issn.1001-3733.2015.03.021
- VernacularTitle:面载荷工况条件下三维有限元分析下颌第一磨牙的应力情况
- Author:
Chuan LIN
;
Li DU
- Publication Type:Journal Article
- Keywords:
The first mandible molar;
Three-dimensional finite element models;
Pressure
- From:
Journal of Practical Stomatology
2015;(3):393-396
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To establish three-dimensional(3D)finite element model of the mandible first molar,and to study the stress distribution.Methods:3D finite element model of the mandible first molar was constructed by CT image reconstruction technique.Then MIMICS software was used to separate the areas and finish 3D calculation.GEOMAGIC software was applied to modify and generate a NURBS surface in each patch.All components of the model were assembled under the ANSYS preprocessor.Specific material parame-ters were selected to simulate the various restoration and dentin status.The 3D finite element model was applied to analyze the stress distribution of the molar under 1 4 different pressure loading conditions.Results:The 3D finite element model of the mandible first molar was established,which was consistent to the situation observed in the clinical environment.The pressure loading n2,n8,n9,n1 0,n1 1 , n1 2,n1 3,n1 4 can be used to represent the bite pressure.Conclusion:It is a practical and accurate way to establish 3D finite element model by CT image reconstruction technique and reverse engineering software MIMICS and GEOMAGIC.
