蓝色热处理发动机驱动文件的循环疲劳耐力,使用不同的动力学来使用不同的通道接入角度;一个体外研究
Bassem Eid1, Mohammed Kataia2, Tarek Elsewify1,3
1Restorative Dental Science Department, College of Dentistry, Gulf Medical University, Ajman, United Arab Emirates.
Frontiers in dental medicine
|September 11, 2025
概括
互动运动和直线接入显著提高了E3 Azure-文件的循环疲劳阻力. 这些因素提高了牙周内科手术的安全性和效率.
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
- 生物医学工程 生物医学工程
背景情况:
- - (NiTi) 旋转文件在内牙治疗中至关重要.
- 循环疲劳失败是一个主要问题,可能会损害治疗结果.
- 优化文件设计和使用协议对于提高程序安全至关重要.
研究的目的:
- 调查动力学 (旋转与反转) 和文件访问角度对E3 Azure NiTi文件的循环疲劳电阻的影响.
- 确定这些变量如何影响体温下内牙科仪器的动态疲劳寿命.
主要方法:
- 80个E3 Azure 25/06 NiTi文件在动态循环疲劳条件下进行了测试.
- 文件根据动力学 (旋转/互换) 和访问角度 (0°/30°) 将文件分成组.
- 在体温下使用定制模拟道测量到骨折的时间和骨折的长度.
主要成果:
- 与连续旋转相比,互动运动显著增加了破裂的时间 (p < 0.001).
- 一个零度的接入角度导致明显更长的时间比一个30度的角度破裂 (p < 0.001).
- 动力学和接入角度都显著影响了循环疲劳耐力.
结论:
- 互换和更直的 (0°) 文件访问角度增强了E3 Azure NiTi文件的循环疲劳抵抗力.
- 这些发现表明,优化动力学和实现直线接入可以提高内牙治疗的安全性和效率.
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