评估单个和连接通道的顶点压力 - - 一项基于计算流体动力学分析的ex vivo研究
Sahil Choudhari1, Kavalipurapu Venkata Teja1, Sindhu Ramesh1
1Department of Conservative Dentistry and Endodontics, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India.
European endodontic journal
|November 9, 2023
概括
计算流体动力学分析 (CFD) 显示,与连接通道相比,单根通道在工作长度的25%产生更高的顶峰压力. 在其他针头位置上没有发现显著差异.
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
- 牙科解剖学 牙科解剖学
背景情况:
- 计算流体动力学 (CFD) 是模拟根通道中的流体流动和顶峰压力的宝贵工具.
- 了解顶峰压力动态对于有效的内牙治疗和预防并发症至关重要.
研究的目的:
- 分析和比较模拟内手术过程中产生的顶点压力,以单一的 (Vertucci I型) 和连接的 (Vertucci II型) 根管解剖学提取牙.
- 为了评估针头插入深度对不同根管配置的顶峰压力的影响.
主要方法:
- 摘取的四十六颗牙 (下第二前和大第二前) 进行了圆束计算断层扫描 (CBCT) 进行解剖确认.
- 用旋转仪器对根通道进行了仪器仪表,以0.04缩,随后进行了仪器后CBCT和计算机辅助设计模型的创建.
- 模拟CFD模拟使用模拟的30尺侧通风针插入25%,50%和75%的工作长度 (WL).
主要成果:
- 单通道标本 (Vertucci I型) 在短于WL针位置的25%处表现出明显更高的顶点压力 (p<0.05).
- 在单个和连接道组之间,在针位置50%和75%不到WL时,没有观察到尖顶压力的显著差异.
结论:
- 单根通道解剖学与在工作长度不足25%的灌时,与更高的顶峰压力有关.
- 根管解剖结构的配置 (单个与连接) 并没有显着影响针头插入更深处的尖顶压力 (50%和75%不到WL).
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