循环疲劳和物理性质测试不同小的热处理反转文件的测试
Ahmed Altuwalah1, Taher Al Omari2, Riyadh Alroomy3
1Department of Restorative and Prosthodontic Dental Sciences, College of Dentistry, Majmaah University, Almajmaah, Saudi Arabia.
Journal of endodontics
|October 9, 2025
概括
与黄金处理的文件相比,蓝色热处理的内牙科文件显示出优越的循环疲劳抵抗力. R Motion和Tia Premium Blue文件显著超过了其他测试的反转仪器.
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
- 牙科工程 牙科工程
背景情况:
- 循环疲劳耐受性对于内牙科文件的长寿至关重要.
- 小尺寸的互换文件越来越多地用于根管治疗.
- 了解材料特性可以提高临床性能和安全性.
研究的目的:
- 为了评估小尺寸的互换性内牙科文件的循环疲劳阻力.
- 分析这些文件的化学和物理特性.
- 为了比较蓝色热处理与金处理文件的性能.
主要方法:
- 60个内牙科文件在模拟道中进行了循环疲劳测试.
- 测试是在一个具有特定曲率和尺寸的不钢人工运河中进行的.
- 差分扫描热量计,能量分散式X射线光学和扫描电子显微镜用于材料分析.
主要成果:
- R Motion (2542秒) 和Tia Premium Blue (2419秒) 显示出明显更高的循环疲劳抵抗力.
- 泰亚维拉黄金 (283秒),W Plus黄金 (318秒) 和Wave One黄金 (292秒) 的阻力较低.
- 分断片段的长度在文件类型之间差异很大.
结论:
- 蓝色热处理文件比金处理文件具有显著更大的循环疲劳抵抗力.
- 对于R Motion和Tia Premium Blue的文件来说,它们的耐用性非常强,超过2400秒.
- 研究结果表明,热处理对文件的性能和寿命有显著影响.
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