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失败的牙科植入物:当断裂时

João Paulo Mendes Tribst1, Arie Werner2, Erik J Blom1

  • 1Department of Reconstructive Oral Care, Academic Centre for Dentistry Amsterdam (ACTA), Universiteit van Amsterdam and Vrije Universiteit, 1081 LA Amsterdam, The Netherlands.

Diagnostics (Basel, Switzerland)
|June 28, 2023
PubMed
概括

由于设计缺陷,材料疲劳和生物力学压力,即使在骨质整合后,植入物也可能发生骨折. 这凸显了人们对这些常见的骨科和牙科设备的长期耐用性的担忧.

关键词:
生物材料是一种生物材料.牙植入物是指牙植入物.牙修复失败 牙修复失败骨折强度强度的断裂强度是什么一个单一的牙植入物植入物.

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科学领域:

  • 生物材料科学 生物材料科学
  • 整形外科手术 整形外科手术
  • 牙科植入物学 牙科植入物学

背景情况:

  • 植入物广泛用于骨科和牙科应用.
  • 有关在骨整合后可能发生的植入物变形和骨折存在担忧.

研究的目的:

  • 为了调查成功骨整合后植入物骨折的病例.
  • 在没有重大创伤的情况下,识别导致植入失败的因素.

主要方法:

  • 临床病例审查.
  • 扫描电子显微镜 (SEM) 的破碎的植入物表面.

主要成果:

  • 一个植入物在假肢平台附近破裂,尽管骨质整合成功.
  • 骨折归因于支柱设计缺陷,材料疲劳和功能负载期间的生物机械应力.
  • SEM揭示了与材料故障相一致的断裂特征.

结论:

  • 植入物,尽管它们的柔性,容易发生骨折.
  • 植入物的长期耐用性和可靠性可能会受到损害,特别是在高压力区域.
  • 植入物设计和生物力学因素对于防止故障至关重要.