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高插入扭矩和早期植入器故障

Wyatt J Spresser1, Brian R Carr1, Emily M Duhon1

  • 1Department of Surgery, Division of Oral and Maxillofacial Surgery, UT Southwestern/Parkland Memorial Hospital, Dallas, TX, USA.

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概括

在牙科植入物手术中,高插入扭矩显著增加了早期植入物失败的风险. 这项研究发现,植入物放置在≥60牛顿厘米 (N-cm) 的风险增加了9倍.

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科学领域:

  • 牙科 牙科是指牙科的专业.
  • 生物材料科学 生物材料科学
  • 手术创新 在外科创新.

背景情况:

  • 在手术文献中,对于内性牙植入物的最佳插入扭矩仍在争论中.
  • 关于高或低扭矩值是否与改善的植入成功率相关,存在相互矛盾的理论.

研究的目的:

  • 为了前性地研究高插入扭矩和早期牙植入物失败之间的关联.
  • 为了确定是否超过特定的扭矩值影响植入物存活率,在假肢加载之前.

主要方法:

  • 一项前性观察性研究,涉及207个植入95名患者的牙科植入物.
  • 植入物被分为一个高扭矩组 (≥60N-cm) 和一个控制组 (30-59N-cm).
  • 早期的植入失败被定义为在假肢加载之前的脱皮,移动性或扩张.

主要成果:

  • 在高扭矩组 (OR = 9.00,P = .043) 中,观察到具有统计意义的9倍早期植入失败的风险增加.
  • 高扭矩组经历了显著更高的早期植入物并发症的发生率.

结论:

  • 高插入扭矩 (≥60N-cm) 与早期牙植入物失败的风险大幅增加有关.
  • 虽然高扭矩可以提高初级稳定性,但它也可能导致诸如骨吸收和骨整合受损等不良结果,最终危及植入物成功.