Finite element analysis of individualized magnesium alloy meshes with different thickness

Zhiqiang YANG; Ping JI; Liyun BAI; Chao WANG

doi:10.16016/j.1000-5404.201902147

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Finite element analysis of individualized magnesium alloy meshes with different thickness

更新时间：2026-01-09

- Finite element analysis of individualized magnesium alloy meshes with different thickness
- Journal of Third Military Medical University Vol. 41, Issue 15, Pages: 1506-1510, 封三(2019)
- 作者机构：
- 作者简介：
- 基金信息：
  
  the General Program of National Natural Science Foundation of China(11872135);the Project for Innovation Team Construction of Higher Education in Chongqing(CXTDG201602006)
- DOI：10.16016/j.1000-5404.201902147
  CLC：
- Received：27 February 2019，
  
  Published：15 August 2019
- 稿件说明：
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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：

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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