数字构造的,改造的聚乙和聚乙乙在缩的部上植入的亚骨植入物的生物机械效应:有限元素分析
Mohammed A El-Sawy1,2, Basin El-Khatib3, Hesham S Borg4
1Department of Prosthetic Dental Science, Faculty of Dentistry, Menoufia University, Shibin El-Kom, Egypt. Dr_sawy@windowslive.com.
BMC oral health
|July 10, 2025
概括
子骨框架最好在缩的上部分配压力,保护骨和螺丝. 改性PEEK和PEKK是减少功能负载的替代品.
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:
- 缩的部对牙植入物稳定性构成挑战.
- 亚骨架和超结构框架的材料选择会影响应力分布.
- 有限元分析 (FEA) 是模拟生物机械行为的宝贵工具.
研究的目的:
- 评估不同框架材料组合 (,改性PEEK,PEKK) 对缩大部应力分布的影响.
- 为了在不同负载条件下比较,改性PEEK和PEKK,用于不同负载条件下的下皮骨和上层结构框架.
- 为了确定缩的上部下皮骨植入物的最佳材料选择.
主要方法:
- 使用CT数据,CAD和ANSYS软件开发了缩部的3D FEA模型.
- 分析了九种框架材料组合在垂直,斜和切口方向的力下.
- 骨下框架用12个不同长度的迷你螺丝钉来固定.
主要成果:
- 底骨框架表现出优越的应力分布与骨和固定螺丝.
- 修改后的PEEK和PEKK表现出更高的应力,特别是在切肢负荷下.
- 在水泥,PEEK/PEKK框架和骨头中,垂直切口力诱导了临界应力水平,但不是迷你螺丝.
结论:
- 是由于其应力分布特性而在缩的上骨中为下皮骨架构的最佳材料.
- 修改后的PEEK和PEKK为功能需求较低的患者提供了潜在的替代方案.
- 材料选择显著影响压力转移和缩部的植入成功.
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