在倾斜的植入物上后部区域的角度支柱的影响:一个3D有限元素分析
Peng Chen1, Jianguo Zhang2, Juan Yao3
1School of Mechanical Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Fengxian, 201418, Shanghai, China.
这项研究使用有限元分析 (FEA) 来评估骨组织对角形牙支柱的动态负荷的反应. 一个15°角的支柱体显示出有利的应力分布,这表明改善了植入物稳定性.
科学领域:
- 生物材料科学 生物材料科学
- 生物力学 生物力学
- 牙科植入物学 牙科植入物学
背景情况:
- 牙植入物对于牙置换至关重要.
- 角度支柱用于纠正植入物角度.
- 了解骨组织对动态负载下的角度支柱的反应,对于长期的植入成功至关重要.
研究的目的:
- 用有限元素分析 (FEA) 来评估在动态负荷下对四个角度支柱的骨组织效应,这些支柱具有不同的 palatal 侧倾斜角度.
- 分析植入周围骨组织中的等效应力和应变.
- 确定最优的角度支柱以尽量减少应力度和最大限度地提高植入物稳定性.
主要方法:
- 创建了后部区域,植入物,角度支柱和中央螺丝的三维有限元素模型.
- 十个具有不同倾斜角度的模型 (,,,) 被 subjected to动态消化负载.
- 分析了植入周围骨组织中的等效应力和应变.
主要成果:
- 植入物部口腔侧的皮层骨表现出压力度.
- 皮层骨经历的压力明显高于无关骨.
- 应变度发生在植入物部和基础周围.
- 倾斜角度为2,907 MPa,3,018 MPa和2,164 MPa的角度支柱分别显示了峰值应力,这表明了有利的结果.
结论:
- 角度支柱显著影响植入周围骨组织的应力分布.
- 具有特定倾斜角度的角度支柱在动态负载下管理应力方面具有优势.
- FEA是优化牙植入物设计和预测骨组织反应的宝贵工具.
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