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在根管道顶部区域的超声波激活灌的气泡流体动力学研究

Yue Wang^1,2, Yi-Chen Zhu³, Jin Zhu⁴

¹Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & NHC Key Laboratory of Digital Stomatology & NMPA Key Laboratory for Dental Materials, Beijing, China.

|September 28, 2025

概括

根通道中的超声波激活灌揭示了不同的泡流体动力学阶段. 较大的道缩小显著延长泡锁的形成,影响灌效率.

科学领域:

牙周内科医院牙周内科医院牙周内科医院
生物医学工程生物医学工程
流体动力学流体动力学

背景情况:

根管灌对于有效的内牙治疗至关重要.
了解流体动力学,特别是泡行为,是优化灌技术的关键.
超声波激活增强了灌,但需要对其对流体力学影响进行详细分析.

研究的目的:

在超声波激活灌过程中,研究顶根管中的泡泡液的动态特性.
分析不同通道缩小尺寸对泡行为和流体动力学的影响.
在超声波激活灌中描述泡形成,生长和稳定的阶段.

主要方法:

在#30/0.04和#30/0.06运河模型中进行了超声波激活灌.
高速流动可视化 (4000 fps) 捕获了实时泡动态.
使用ImageJ和MATLAB软件进行泡分析,包括运动,锁形成和化面积计算.

主要成果:

流体动力学表现出启动,增长和稳定阶段,有小泡生成,凝聚和崩.
气泡锁形成,气泡阻止进一步通行,发生在5.00 ± 2.26秒 (# 30/0.04) 和9.80 ± 2.74秒 (# 30/0.06).
较大的通道收缩 (0.30毫米顶径) 显著延长了气泡锁的形成和增加了气泡移动距离.

结论:

运河缩尺寸在超声波激活灌过程中极大地影响了泡流体动力学.
优化灌协议可能需要考虑运河几何学,以有效地管理泡行为.
研究结果提供了对超声波激活灌的物理机制的见解,以改善临床结果.

关键词:

气泡流体动力学气泡流体动力学这是一个泡锁.高速流动可视化高速度流动可视化根管道的收缩变得更加细致.超声波激活的灌方式

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