Three-dimensional finite element analysis on the effect of palatal vault shape on the stress distribution of edentulous maxilla surface
- VernacularTitle:腭穹隆形态对无牙上颌应力分布的三维有限元分析
- Author:
Min XIAO
;
Lekang BAI
;
Sanping GUO
- Publication Type:Journal Article
- Keywords:
maxillary edentulous;
palatal vault shape;
loading condition;
3-dimensional finite element method(3-D FEM)
- From:
Journal of Xi'an Jiaotong University(Medical Sciences)
1981;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the effect of different palatal vault shape on the stress distribution of edentulous maxilla surface.Methods Using three-dimensional finite element method(3-D FED),we simulated five bite states,putting five loading conditions on 3-D FED model of maxillary edentulous with three different palatal vault shapes.Results We obtained the stress value and multicolor picture of 3-D FE model.Labial frenal notch zone and alveolar ridge zone were the stress concentration zone of the maxillary edentulous with three different palatal vault shapes under five kinds of loading conditions.The deep palatal vault maxillary edentulous almost had the maximum stress values in labial frenal notch zone,palate zone and alveolar ridge zone,and upper edentulous jaw with palatal torus was the minimum.Conclusion Palatal vault shape can change the stress value of edentulous maxilla surface,but cannot change the stress distribution.Loading condition can change the stress distribution and stress value.
