Analysis of stress distribution in different lateral occlusion patterns of All-on-4 fixed denture:A three-dimensional finite ele-ment study
10.13591/j.cnki.kqyx.2025.03.004
- VernacularTitle:All-on-4种植固定义齿不同侧方咬合方式应力分布的有限元分析
- Author:
Zhengmin WU
1
;
Yong ZHANG
;
Ying YANG
;
Fangming ZHANG
Author Information
1. 首都医科大学附属北京友谊医院口腔科,北京(100050)
- Publication Type:Journal Article
- Keywords:
All-on-4;
occlusion;
group function occlusion;
canine protected occlusion;
finite element analysis
- From:
STOMATOLOGY
2025;45(3):180-184
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the effect of different lateral occlusion patterns on the stress distribution of All-on-4 implanted fixed dentures.Methods A model of All-on-4 implant fixed denture was established,and lateral balanced occlusion,group functional oc-clusion,and canine protection occlusion was simulated by changing the loading method.The selected loading force was 200 N vertically and 30 N horizontally.Results The maximum stress values of each part of the simulated balanced occlusion model were the smallest,while the maximum stress values of each part of the canine protection model were the largest.The maximum stress values of each part of the group functional occlusion model were slightly larger than those of the balanced occlusion model,but significantly smaller than those of the canine protection model.Conclusion Group function occlusion could be selected for the lateral occlusion in the final restoration of All-on-4 implant prosthesis.
