不同厚度的个性化镁合金网的有限元分析

杨志强; 季平; 白丽云; 王超

doi:10.16016/j.1000-5404.201902147

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不同厚度的个性化镁合金网的有限元分析

临床医学 | 更新时间：2026-01-09

- 不同厚度的个性化镁合金网的有限元分析
- Finite element analysis of individualized magnesium alloy meshes with different thickness
- 第三军医大学学报 2019年41卷第15期页码：1506-1510, 封三
- 作者机构：
- 作者简介：
- 基金信息：
  
  国家自然科学基金面上项目(11872135);2016年重庆高校创新团队建设计划资助项目(CXTDG201602006)
- DOI：10.16016/j.1000-5404.201902147
  中图分类号：
- 收稿：2019-02-27，
  
  纸质出版：2019-08-15
- 稿件说明：
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杨志强, 季平, 白丽云, 等. 不同厚度的个性化镁合金网的有限元分析[J]. 第三军医大学学报, 2019,41(15):1506-1510, 封三.

Zhiqiang YANG, Ping JI, Liyun BAI, et al. Finite element analysis of individualized magnesium alloy meshes with different thickness[J]. Journal of Third Military Medical University, 2019, 41(15): 1506-1510, 封三.
杨志强, 季平, 白丽云, 等. 不同厚度的个性化镁合金网的有限元分析[J]. 第三军医大学学报, 2019,41(15):1506-1510, 封三. DOI： 10.16016/j.1000-5404.201902147.

Zhiqiang YANG, Ping JI, Liyun BAI, et al. Finite element analysis of individualized magnesium alloy meshes with different thickness[J]. Journal of Third Military Medical University, 2019, 41(15): 1506-1510, 封三. DOI： 10.16016/j.1000-5404.201902147.

摘要

Abstract

Objective

To investigate the stress-strain distribution of magnesium alloy meshes with different thickness during bone healing by three-dimensional finite element analysis in order to provide a reference for the design of personalized magnesium alloy mesh.

Methods

After the cone-beam computed tomography (CBCT) data of a patient with tooth loss of C2-D2 and large alveolar defect were extracted

three-dimensional reconstruction was performed on the bone defect area. Three-dimensional finite element models of bone implant material and magnesium alloy meshes with different thickness were designed

and their stress-strain distributions were analyzed.

Results

The strain and stress showed a decreasing trend with the increase of the thickness of magnesium alloy mesh. During the process of bone healing

the stress of the bone implant material was gradually increased while the strain was gradually decreased. The strain of immature and mature bone was less than the strain at break. The stress was decreased first and then increased in the degradation of magnesium alloy mesh.

Conclusion

Magnesium alloy mesh of 0.3 and 0.4 mm thickness can only bear a small load

and can't meet the need of large area guided bone regeneration (GBR). The maximum equivalent stress of 0.5 mm-thickness magnesium alloy mesh is within the safe range

and the mesh has enough strength in the process of degradation

and can guide good bone healing and meet the clinical needs of GBR.

关键词

Keywords

references

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