对不同-文件进行循环疲劳和曲试验的评估
Farah Ramadan1, Ammar AbuMostafa1, Dalia Alharith1
1Department of Restorative Dentistry, Riyadh Elm University, College of Dentistry, Riyadh, Saudi Arabia.
PloS one
|August 25, 2023
概括
赛车Evo- (NiTi) 旋转文件表现出优越的循环疲劳抵抗力,而Tia Tornado Blue文件表现出比One Curve文件更大的灵活性. 这项研究比较了三个NiTi旋转文件系统.
科学领域:
- 牙周内科医院 牙周内科医院 牙周内科医院
- 材料科学 材料科学 材料科学
背景情况:
- - (NiTi) 旋转文件在内牙治疗中至关重要.
- 了解不同NiTi文件系统的循环疲劳阻力和灵活性对于临床成功和防止仪器骨折至关重要.
研究的目的:
- 为了比较三个不同的NiTi旋转文件系统的循环疲劳抵抗和曲特性:Race Evo,Tia Tornado Blue和One Curve.
- 为了评估文件设计对机械性能的影响,在模拟根管程序期间.
主要方法:
- 九十个NiTi仪器 (尺寸25/.06) 分为三个组 (Race Evo,Tia Tornado Blue,One Curve).这些仪器分为三个组.
- 每组在体温下进行了曲测试和动态循环疲劳测试.
- 使用扫描电子显微镜 (SEM) 分析破碎的文件,用电子微米仪测量破碎的部件.
主要成果:
- 与Race Evo和One Curve文件相比,Tia Tornado Blue文件显示出明显更大的灵活性 (较低的最大负载).
- 赛车Evo文件显示,周期到骨折 (NCF) 的数量显著增加,这表明其具有优越的循环疲劳抵抗力.
结论:
- 赛车evo文件提供更强的抗循环疲劳骨折,使它们成为一个潜在的更耐用的选择.
- 蒂亚龙卷风蓝色文件更灵活,这可能有利于导航复杂的根管解剖学.
- 这些发现为临床医生根据所需的机械性质选择NiTi旋转文件提供了宝贵的见解.
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