评估和优化屏蔽设计的前牙在插座屏蔽技术:一个有限元研究
Qianqian Zuo1,2, Haidong Teng1,2, Yuanli Zhang3
1Yibin Institute of Industrial Technology, Sichuan University Yibin Park, Yibin, China.
Computer methods in biomechanics and biomedical engineering
|January 7, 2026
概括
个性化屏蔽设计对于牙科植入物中插座屏蔽技术 (SST) 至关重要. 根据牙位置优化盾牌几何,可以改善应力分布和长期稳定性.
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
- 审美牙科 审美牙科
背景情况:
- 插座屏蔽技术 (SST) 提供了立即将牙植入物放置在前面的美学区域的希望.
- 了解屏蔽设计参数的生物力学影响对于优化SST结果至关重要.
- 当前的SST设计往往缺乏针对不同前牙位置的特异性.
研究的目的:
- 为了研究不同盾牌几何学如何影响侧切口和牙中牙植入物周围的应力分布.
- 提供证据支持用于插座盾技术的解剖学驱动的设计策略.
- 评估屏蔽长度,厚度和跳跃间隙对周围植入物组织的生物力学影响.
主要方法:
- 人类部的3D有限元素模型是使用形光束计算机断层扫描数据创建的.
- 分析了9个具有不同盾牌设计 (长度,厚度,跳跃间隙) 的有限元素模型,以分析中心切口,侧切口和狗的位置.
- 应用了时间依赖的斜功能负载来模拟力,评估盾牌和牙周带 (PDL) 中的应力和位移.
主要成果:
- 基于中央切口的SST设计导致侧切口和犬体的压力分布不足.
- 较大的跳跃间隙改善了侧切口的应力减轻.
- 半根的盾牌长度在狗中超过了三分之一,用于压力管理.
- 增加的屏蔽厚度增强了应力分散,但保持稳定性需要在空间限制下平衡厚度与跳跃间隙.
结论:
- 有限元分析证实,个性化盾牌设计对于插座盾牌技术至关重要.
- 根据特定的牙位置定制SST护几何,优化了机械稳定性,并可能改善长期的临床结果.
- 这项研究提供了生物力学证据,以指导开发更有效的,针对解剖学的SST协议.
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