评估两个治疗概念的四种植入物支持固定假肢在缩的部:有限元素分析
Anlin Li1, Zhixiang Mu1, BaiRui Zeng1
1School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, PR China.
BMC oral health
|December 9, 2023
概括
与倾斜的植入物相比,短植入物可以为上假肢提供优越的生物力学特性,可能会向支持骨组织传递更少的力.
科学领域:
- 牙科植入物学 牙科植入物学
- 生物机械工程 生物机械工程
- 牙修复 牙修复 牙修复 牙修复 牙修复
背景情况:
- 上鼻附近需要使用替代的植入物放置策略.
- 斜长植入物和短植入物是目前固定假肢的替代品.
- 这些概念的生物机械比较对于治疗规划至关重要.
研究的目的:
- 为了比较倾斜的长植入物与部的短植入物的生物力学特征.
- 在缩的部中确定固定假肢的最佳植入物安置位置.
主要方法:
- 创建了两个模型:倾斜长植入物 (LT4I) 和垂直短植入物 (VS4I).
- 数字模拟评估了斜和垂直/切口负荷下的应力.
- 计算了骨和植入物应力 (σmax, σmin, von Mises) 的时间.
主要成果:
- 在斜和垂直骨负荷下,LT4I组的骨压力更高.
- 在切肢负荷的组之间观察到最小的应力差异.
- 短植入物 (VS4I) 显示可能降低应力传输.
结论:
- 倾斜的长植入物和短植入物都适用于中度缩的部.
- 短的植入物可能比倾斜的植入物传递更少的闭合力.
- 进一步的研究可以完善上部重建的治疗选择.
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