侧通气根管灌洗针设计优化:基于CFD和多准则决策分析的孔径角和构型分析,体外验证和c形根管模拟。

IF 3.6 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE
Jiayang Gao DDS , Yuhua Dai DDS, MSD , Ziteng Long DDS , Yi Min DDS, PhD , Ya Shen DDS, PhD , Yuan Gao DDS, PhD
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引用次数: 0

摘要

前言:本研究旨在提高#25/根管灌洗的有效性和安全性。通过优化侧面通风针设计,专注于斜角调整和密封配置。方法:对改良的30G侧边通气针进行不同斜角和构型(实心与空心)的计算流体力学模拟。分析指标包括灌溉交换距离、顶压力、管壁剪应力和流速分布。采用统计回归分析和熵加权TOPSIS法对针筒进行优化设计。将优化后的针和标准针放置在c形管模型中进行CFD模拟。改良侧通气根管灌洗针的体外性能也进行了评估。结果:固体斜面针优于空心斜面针设计,与标准针相比,灌溉交换距离增加了35%。固体斜针的中等斜角提供了有效的灌溉交换和降低根尖压力之间的最佳平衡。扩大水渠尺寸进一步提高了灌溉性能。结论:优化后的固体斜角针设计显著提高了根管内灌溉水的分布,中等斜角的设计效果更佳。设计上的改进,如将斜面围在孔径以下,是提高灌溉效率的一个有希望的途径。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Optimization of Side-vented Root Canal Irrigation Needle Design: Aperture Bevel Angle and Configuration Analysis using CFD and Multicriteria Decision Analysis with In Vitro Validation and C-shaped Canal Simulation

Introduction

This study aimed to enhance the efficacy and safety of root canal irrigation in #25/.06 canals by optimizing side-vented needle designs, focusing on bevel angle adjustments and sealing configurations.

Methods

Computational fluid dynamics simulations were performed on modified 30G side-vented needles with varying bevel angles and configurations (solid vs hollow). Metrics analyzed included irrigant exchange distance, apical pressure, wall shear stress and velocity distribution. Statistical regression analysis and the entropy-weighted TOPSIS method were applied to find the optimized needle designs. The optimized needle and the standard needle were placed in a C-shaped canal model for computational fluid dynamic simulations. Modified side-vented root canal irrigation needles were also evaluated in vitro for performance.

Results

Solid-bevel needles outperformed hollow-bevel designs, achieving up to a 35% increase in irrigant exchange distance compared to standard needles. Medium bevel angles in solid-bevel needles provided an optimal balance between efficient irrigant exchange and reduced apical pressure. Enlarging the canal dimensions further improved irrigation performance.

Conclusions

Optimized solid-bevel needle designs significantly enhance irrigant distribution within root canals, with medium bevel angles demonstrating superior performance. Design modifications, such as enclosing the bevel surface below the aperture, present a promising avenue for improving irrigation efficiency.
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来源期刊
Journal of endodontics
Journal of endodontics 医学-牙科与口腔外科
CiteScore
8.80
自引率
9.50%
发文量
224
审稿时长
42 days
期刊介绍: The Journal of Endodontics, the official journal of the American Association of Endodontists, publishes scientific articles, case reports and comparison studies evaluating materials and methods of pulp conservation and endodontic treatment. Endodontists and general dentists can learn about new concepts in root canal treatment and the latest advances in techniques and instrumentation in the one journal that helps them keep pace with rapid changes in this field.
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