一个背对背的双侧通风针的灌动力学在各种缩的根通道:一个计算流体动力学研究研究
Surmayee Singh1, Mohammad Zuber2, Prathmesh Pravin Verekar2
1Department of Conservative Dentistry and Endodontics, Manipal College of Dental Sciences Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.
Odontology
|May 4, 2024
概括
计算流体动力学显示,双侧通风针 (DSVN) 可能会增加狭窄的根通道中的顶点压力,冒着灌剂挤出的风险. 更宽的通道显示,DSVN的顶峰压力较低.
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:
- 有效的根管灌对于内牙治疗成功至关重要.
- 了解灌液流动力学和顶峰压力对于预防并发症至关重要.
研究的目的:
- 分析灌液流量模式和根管模型中的顶点压力,其度不同 (4%,6%,8%).
- 为了比较不同针设计的有效性,包括开放式 (OEN),单侧通风 (SSVN) 和双侧通风 (DSVN) 的针,在最终灌过程中.
主要方法:
- 利用计算流体动力学 (CFD) 在标准化根管模型中模拟灌流.
- 研究了三种针类型 (OEN,SSVN,DSVN) 在形模型中,模拟了顶部区域和不同的缩度.
主要成果:
- 在4%的缩模型中,OEN产生了最高的顶峰压力,其次是DSVN和SSVN.
- 在6%和8%的形模型中,DSVN产生了最低的顶点压力,这表明在狭窄的通道中存在潜在的挤出风险.
- OEN实现了最大的灌替换,而闭端针 (SSVN,DSVN) 显示了较低的剪切壁应力和不均的流量.
结论:
- 由于顶峰压力增加,DSVN可能会在准备最少的运河中构成灌剂挤出风险.
- 使用更宽的根管制剂 (6-8%的逐渐缩小) 会导致使用DSVN时的顶峰压力降低.
- 针设计显著影响灌剂的更换和剪切壁应力,影响清洗效率.
相关概念视频
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Entrainment devices use a high fluid speed to create low pressures and, thus, entrain one fluid into another. Some examples of these devices are given below:
Entrainment devices use a high fluid speed to create low pressures and, thus, entrain one fluid into another. Some examples of these devices are given below:
01:19Capillarity in Fluid
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