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两种不同的旋转文件对牙裂纹形成的影响:扫描电子显微镜 (SEM) 研究

Ataul Hafeez Imran¹

¹Conservative Dentistry and Endodontics, Noor Hospital, Qadian, IND.

|May 19, 2025

概括

在根运河准备过程中,ProTaper Next 和 Mtwo 尼克旋转文件都会导致牙裂. ProTaper Next导致裂减少,特别是在顶端三分之一,这表明它可能会降低根骨折风险.

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:

根管的准备对于内牙治疗的成功至关重要.
旋转文件系统被广泛用于塑造和清理根通道.
牙裂形成是根管仪器的潜在并发症.

研究的目的:

为了比较ProTaper Next和Mtwo- (Ni-Ti) 旋转文件系统之间的牙裂纹形成的发生率.
评估这些文件系统对牙完整性的影响.
评估不同根三分之一的裂纹流行率.

主要方法:

使用ProTaper Next和Mtwo Ni-Ti旋转文件对单根下前进行标准化根管制备.
牙的切割距离顶部的3,6和9毫米.
使用扫描电子显微镜 (SEM) 检查牙裂纹形成.

主要成果:

无论是ProTaper Next还是Mtwo系统都引起了牙裂.
ProTaper Next显示了比Mtwo更少的裂的趋势,尽管在统计上并不显著 (p > 0.05).
在顶点三分之一中发现了统计学上显著的差异 (p < 0.05),Mtwo比ProTaper Next造成了更多的裂.

结论:

这两种旋转文件系统都可能导致牙裂.
似乎ProTaper Next造成的裂较少,特别是在顶峰区域.
仔细选择旋转文件系统是重要的,以尽量减少牙损伤和潜在的根骨折.

关键词:

牙上的裂牙上的裂这就是MTV的MTV.下一个protaper是下一个protaper 根管道准备根管道准备旋转文件系统旋转文件系统

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