植入物位置对植入物支可移动部分牙的机械效应,使用三维有限元素分析
Kentarou Nakamura1, Hirokazu Kumano1, Shogo Ozawa1
1Department of Removable Prosthodontics, School of Dentistry, Aichi Gakuin University, Nagoya, JPN.
Cureus
|February 2, 2026
概括
植入可拆卸部分假牙的植入物可以减少支柱牙和周围组织的压力. 这种植入物支也减少了假牙的运动,提供了更好的稳定性和功能.
科学领域:
- 生物材料和生物力学
- 牙科植入物学 牙科植入物学
- 牙修复 牙修复 牙修复 牙修复 牙修复
背景情况:
- 可拆卸部分假牙 (RPD) 经常面临稳定性和应力分布方面的挑战.
- 植入物支持的假肢为改善RPD功能提供了潜在的解决方案.
- 了解植入物放置的机械效应对于优化RPD设计至关重要.
研究的目的:
- 评估各种植入物位置对RPDs的机械影响.
- 为了比较植入式支持的RPD模型中的应力分布和位移与传统的RPD.
- 使用三维有限元素分析 (FEA) 进行机械评估.
主要方法:
- 为FEA创建了一个缺少牙的下模型.
- 设计了一个基本的RPD模型,配有扣子和磁性附件.
- 模拟了三个植入式模型,用10.0毫米的植入物在不同的后部无牙部位 (# 45, #46, #47) 进行模拟.
主要成果:
- 植入物支减少了对支柱牙和残余脊膜的压力.
- 在植入物支持的模型中,牙基位移显著减少.
- 植入物位于46号部位显示最少的位移,表明最佳的稳定性.
结论:
- 植入物放置在远端延伸RPD可以减轻支柱和组织的机械负荷.
- 植入物支持有效地减少了RPD运动,增强了稳定性.
- 植入物集成为RPD提供了额外的支持机制,改善了患者的治疗结果.
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