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相关实验视频

Nithyapriya Selvamani1, Ramesh Ardhanari Shanmugasundaram2, Anand Selvaraj3

  • 1Department of Prosthodontics, Adhiparasakthi Dental College and Hospital, Melmaruvathur, Tamil Nadu, India, Phone: +91 9080096491,

The journal of contemporary dental practice
|June 7, 2023
PubMed
概括
此摘要是机器生成的。

这项研究发现,金合金和合金支柱螺丝在初始扭矩后松动. 建议在10分钟后重新进行例行扭矩,以保持预加载并最大限度地减少牙科植入物的松动.

关键词:
扭矩的损失 扭矩的损失预负载损失 螺丝松动.

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科学领域:

  • 牙科材料科学 牙科材料科学
  • 生物材料工程 生物材料工程
  • 植入物学 植入物学

背景情况:

  • 支柱螺丝松动是牙科植入学中常见的并发症.
  • 了解不同支柱螺丝材料的初始稳定性对于长期植入成功至关重要.

研究的目的:

  • 为了比较金合金螺丝松的程度与没有循环负荷的合金支柱螺丝.
  • 评估重新扭矩在减轻初始螺丝松动方面的有效性.

主要方法:

  • 测试了20个支柱螺丝 (10个金,10个合金).
  • 应用了初始扭矩,然后在10分钟后进行测量.
  • 进行了重启扭矩,立即进行测量,并在重启扭矩后3小时进行测量.
  • 用数字摄影和分析软件测量角变化.

主要成果:

  • 金合金和合金支柱螺丝在初始扭矩后都出现松动.
  • 在初始扭矩后,两种材料之间观察到松动的显著差异.
  • 在重新扭转三小时后,在支柱螺丝上没有进一步的位置变化.

结论:

  • 在初始扭矩10分钟后重新扭矩金和合金支柱螺丝是必不可少的.
  • 常规的重新扭矩有助于保持预负荷,并最大限度地减少在植入物加载前的螺丝松动.
  • 与合金螺丝相比,金色支柱螺丝可能提供更好的初始预负载保留.