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旋转与反转内牙科文件的循环疲劳阻力:系统性审查和元分析

Ana De Pedro-Muñoz¹, Cristina Rico-Romano¹, Patricia Sánchez-Llobet¹

¹Department of Endodontics, Faculty of Dentistry, Alfonso X El Sabio University, 28691 Madrid, Spain.

Journal of clinical medicine

|February 10, 2024

概括

与内牙治疗中的旋转文件相比,互换文件显示出更高的循环疲劳抵抗力. 这种增强的耐用性对于防止在根管程序期间仪器故障至关重要.

科学领域:

牙周内科医院牙周内科医院牙周内科医院
牙科材料科学牙科材料科学
生物材料工程生物材料工程

背景情况:

- (NiTi) 旋转文件的故障是内牙科手术中的一个重要问题.
了解循环疲劳抵抗力是改善内牙仪器设计和临床结果的关键.
这项研究解决了对不同NiTi文件系统疲劳寿命的比较数据的需求.

研究的目的:

为了比较- (NiTi) 旋转和反转文件系统的循环疲劳阻力.
系统地审查和元分析有关该主题的现有研究.
为临床医生提供关于文件系统选择的基于证据的建议.

主要方法:

使用PICO框架:人口 (人工根管),干预 (NiTi旋转和反转文件),比较 (旋转与反转),结果 (循环疲劳抵抗).
在主要的电子数据库 (Medline,Embase,Scopus,SciELO,WOS) 进行了全面的文献搜索.
随机效应模型被用于元分析,计算到骨折的时间 (TTF) 和到骨折的周期数 (NCF) 作为效应大小.

主要成果:

在旋转和反转文件之间的时间到断裂 (TTF) 没有发现统计学上显著的差异.
相反的文件系统显示,与旋转系统相比,循环到断裂 (NCF) 的周期数量在统计上显著增加 (p = 0.035).
交叉档表现出更强的抗循环疲劳,特别是在模拟的双曲线根通道中.

结论:

与旋转的NiTi文件相比,互旋的NiTi文件提供了较高的抗循环疲劳的抵抗力.
这些发现表明,互换系统可以减少根运河仪器仪表期间仪器骨折的风险.
临床医生应考虑互换文件的增强循环疲劳抵抗力,以提高治疗的可预测性.

关键词:

这是一种NiTi合金.尼蒂文件是NITI的文件.循环疲劳抵抗力循环疲劳抵抗力循环疲劳抵抗力牙周内科仪器牙周内科仪器疲劳特性疲劳特性压力骨折压力骨折是一种压力骨折.抗压力抗压力抗压力

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