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

doi:10.13591/j.cnki.kqyx.2025.03.004

Abstract

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 occlusion, 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.

Key words: All-on-4, occlusion, group function occlusion, canine protected occlusion, finite element analysis

CLC Number:

R783.4

WU Zhengmin, ZHANG Yong, YANG Ying, ZHANG Fangming. Analysis of stress distribution in different lateral occlusion patterns of All-on-4 fixed denture: A three-dimensional finite element study[J]. Stomatology, 2025, 45(3): 180-184.

Figures/Tables 9

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References 22

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材料	弹性模量/GPa	泊松比
皮质骨	13.40	0.30
松质骨	1.37	0.30
修复体支架、种植体及基台	110.00	0.33
复合树脂	7.50	0.30

工况	种植体	基台	皮质骨	松质骨	钛支架	树脂面
工况L1	21.188	14.932	6.959	0.813	6.592	6.759
工况L2	29.762	20.162	9.386	1.085	8.908	9.049
工况L3	46.713	23.502	12.596	1.637	16.462	23.252

Analysis of stress distribution in different lateral occlusion patterns of All-on-4 fixed denture: A three-dimensional finite element study

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