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四种热处理的反转仪器的特征:设计,金,机械性能和灌流动模式
Jorge N R Martins1,2,3,4, Emmanuel João Nogueira Leal Silva5,6, Duarte Marques1,2,3,4,7
1Faculdade de Medicina Dentária, Universidade de Lisboa, Lisboa, Portugal.
International endodontic journal
|September 12, 2023
概括
这项研究比较了四个经过热处理的反转仪器,发现了设计和机械性能的变化,但在模拟的根管灌流量上没有显著差异. 这些发现有助于选择合适的内牙仪器.
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
- 生物医学工程 生物医学工程
背景情况:
- 互换仪器在内牙治疗中至关重要,用于根管制备.
- 热处理显著影响-旋仪器的机械性能和性能.
- 了解仪器设计和金学对于优化临床结果和患者安全至关重要.
研究的目的:
- 为了比较设计,金和四种热处理反转仪器的机械性能.
- 用这些仪器准备的模拟根管内评估灌流动力学,使用in silico模型.
主要方法:
- 使用立体显微镜,SEM,3D表面扫描和能量分散式X射线光谱分析仪器设计和组成.
- 不同扫描热量计评估了相变温度.
- 扭曲和曲测试评估了机械性能.
- 计算流体动力学模拟了灌流,顶峰压力和墙壁剪切应力.
主要成果:
- 互惠蓝色拥有最多的刀片 (8);EdgeOne Fire拥有最大的体积和表面积.
- 在3毫米的轴水平上,EdgeOne Fire的核心直径最小 (0.13毫米),而Reciproc Blue的核心直径最大 (0.16毫米).
- 波浪一金和互惠蓝显示最高的最大扭矩,而EdgeOne Fire显示最低的最大扭矩. EdgeOne Fire 和 Reciproc Blue 展示了优越的灵活性.
- 在仪器之间没有观察到灌流动模式的显著差异.
结论:
- 在评估的热处理反转仪器的设计,金和机械性能方面存在差异.
- 尽管存在这些差异,但所有测试的仪器在模拟的根管制剂中都提供了类似的灌效果.
- 这些发现表明,与灌相关的临床性能可能不会在这些特定的互换系统之间有显著差异.
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