不同厚度的网对机械强度和骨应力的影响:一项有限元素研究
Betul Gedik1, Metin Berk Kasapoglu2, Gulce Ecem Dogancali2
1Faculty of Dentistry Department of Oral and Maxillofacial Surgery, Istanbul University, Prof. Dr. Cavit Orhan Tutengil Street No:4 Vezneciler Fatih , Istanbul, Turkey. betulgedik@istanbul.edu.tr.
BMC oral health
|August 20, 2025
概括
网格厚度显著影响引导骨再生 (GBR). 较厚的网格 (0.3mm) 提供优越的机械稳定性和应力分布,而较薄的网格 (0.1mm) 可能会损坏移植物.
科学领域:
- 生物材料科学 生物材料科学
- 牙科植入物学 牙科植入物学
- 生物力学 生物力学
背景情况:
- 指导骨再生 (GBR) 对膜骨缺陷至关重要.
- 网通常用于稳定GBR站点.
- 优化网状性质对于成功的骨增强至关重要.
研究的目的:
- 为了评估网格厚度对机械耐用性的影响.
- 在模拟的负荷期间,分析网状,移植和骨内的应力分布.
- 为了确定指导骨再生的最佳网格厚度.
主要方法:
- 使用从CBCT数据中获得的3D模型,采用有限元分析 (FEA).
- 定制的0.1mm,0.2mm和0.3mm厚的网格实际上应用于后侧气泡缺陷.
- 模型受到30N的垂直力,以模拟负荷.
主要成果:
- 0.1毫米的网格显示了高应力度 (981.57 MPa),有可能造成塑性变形和移植损伤 (35.29 MPa).
- 0.2毫米的网格显示出适度的保护 (网格:452.22 MPa,移植:11.59 MPa).
- 0.3毫米的网格表现出最好的性能与最低的应力 (网格: 226.21 MPa,移植: 7.79 MPa).
结论:
- 网格厚度极大地影响GBR中的机械行为和应力屏蔽.
- 0.3mm的网格厚度为GBR提供了最可靠的机械性能.
- 0.2mm网格提供了潜在的替代平衡灵活性和成本,并仔细考虑了移植应力.
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