不同的冲击数处的锁定圆植入物-顶部连接的移除阻力:一个体外研究
Leyla Kılıç1, Tomurcuk Övül Kümbüloğlu2, Mine Dündar Çömlekoğlu3
1Specialist, Department of Prosthodontic Dentistry, Faculty of Dentistry, University of Ege, İzmir, Turkey.
The Journal of prosthetic dentistry
|January 30, 2026
概括
这项研究发现,更宽的植入物支柱井和更多的冲击通常会增加连接强度,但重复断开连接会略微降低连接强度. 总体而言,连接强度在循环中仍然在统计学上相似.
科学领域:
- 牙科植入物学 牙科植入物学
- 生物材料科学 生物材料科学
- 机械工程 机械工程
背景情况:
- 牙植入物的摩擦锁定支柱的稳定性对于长期成功至关重要.
- 放置力的一致性是影响支柱稳定的关键因素.
- 关于冲击力对支柱连接强度的影响存在不确定性.
研究的目的:
- 为了研究不同冲击力和重复连接-断开周期对锁定缩植入系统的连接强度的影响.
- 评估不同井口直径如何影响植入物 - 支柱连接的稳定性.
- 在模拟的临床使用下评估连接的耐用性.
主要方法:
- 使用5级制造63个植入物-支架复制品 (IARS),具有2mm,2.5mm和3mm孔,以及1.5度的锁定.
- 将标本分为3个冲击类别 (3,6,12次冲击) 和7个重复的座位,冲击和移除周期.
- 使用数字扭矩计测量移除扭矩值 (Ncm) 并使用ANOVA和后 hoc邦费罗尼测试进行统计分析.
主要成果:
- 移除扭矩值显示出基于井径和冲击次数 (P<.001) 的显著变化.
- 观察到的最大扭矩值是3毫米孔和12次冲击.
- 在重复断开-重新连接周期 (P>.05) 中,扭矩值在统计学上保持一致.
结论:
- 更宽的井和增加的冲击周期倾向于增强移除扭矩,表明连接强度更大.
- 重复的断开-重新连接循环显示出轻微的倾向,减少移除扭矩.
- 尽管有这些趋势,在整个测试周期中,总体连接强度在统计学上仍然相似,这表明性能强.
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