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一种新型空气屏障装置在牙科环境中减少气溶胶的效果：计算流体动力学模拟

The Effectiveness of a Novel Air-Barrier Device for Aerosol Reduction in a Dental Environment: Computational Fluid Dynamics Simulation.

作者信息

Ma Xiaoting, Kim Won-Hyeon, Lee Jong-Ho, Han Dong-Wook, Lee Sung-Ho, Kim Jisung, Lee Dajung, Kim Bongju, Shin Dong-Myeong

机构信息

Department of Mechanical Engineering, The University of Hong Kong, Pokfulam 999077, Hong Kong.

Dental Life Science Research Institute, Seoul National University Dental Hospital, Seoul 03080, Republic of Korea.

出版信息

Bioengineering (Basel). 2023 Aug 8;10(8):947. doi: 10.3390/bioengineering10080947.

DOI:10.3390/bioengineering10080947
PMID:37627832
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10452020/
Abstract

The use of equipment such as dental handpieces and ultrasonic tips in the dental environment has potentially heightened the generation and spread of aerosols, which are dispersant particles contaminated by etiological factors. Although numerous types of personal protective equipment have been used to lower contact with contaminants, they generally do not exhibit excellent removal rates and user-friendliness in tandem. To solve this problem, we developed a prototype of an air-barrier device that forms an air curtain as well as performs suction and evaluated the effect of this newly developed device through a simulation study and experiments. The air-barrier device derived the improved design for reducing bioaerosols through the simulation results. The experiments also demonstrated that air-barrier devices are effective in reducing bioaerosols generated at a distance in a dental environment. In conclusion, this study demonstrates that air-barrier devices in dental environments can play an effective role in reducing contaminating particles.

摘要

在牙科环境中使用牙科手机和超声洁牙头等设备，可能会增加气溶胶的产生和传播，气溶胶是被致病因素污染的分散颗粒。尽管已经使用了多种类型的个人防护设备来减少与污染物的接触，但它们通常无法同时展现出优异的去除率和用户友好性。为了解决这个问题，我们开发了一种形成气幕并兼具抽吸功能的气幕装置原型，并通过模拟研究和实验评估了这种新开发装置的效果。通过模拟结果，气幕装置得出了减少生物气溶胶的改进设计。实验还表明，气幕装置在减少牙科环境中一定距离处产生的生物气溶胶方面是有效的。总之，本研究表明牙科环境中的气幕装置在减少污染颗粒方面可以发挥有效作用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2eff/10452020/369fcf0f8d65/bioengineering-10-00947-g009.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2eff/10452020/26a74759d1de/bioengineering-10-00947-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2eff/10452020/8e3d074fa5e9/bioengineering-10-00947-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2eff/10452020/369fcf0f8d65/bioengineering-10-00947-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2eff/10452020/8a0e2e44015a/bioengineering-10-00947-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2eff/10452020/d5cbfe908fd7/bioengineering-10-00947-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2eff/10452020/793c06941c31/bioengineering-10-00947-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2eff/10452020/cbb9c898be97/bioengineering-10-00947-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2eff/10452020/1015893473e9/bioengineering-10-00947-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2eff/10452020/ef3000b7fa9c/bioengineering-10-00947-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2eff/10452020/26a74759d1de/bioengineering-10-00947-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2eff/10452020/8e3d074fa5e9/bioengineering-10-00947-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2eff/10452020/369fcf0f8d65/bioengineering-10-00947-g009.jpg

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本文引用的文献

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Sci Rep. 2021 Jun 3;11(1):11778. doi: 10.1038/s41598-021-91265-5.
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A novel dental biosafety device to control the spread of potentially contaminated dispersion particles from dental ultrasonic tips.一种新型牙科生物安全设备，用于控制牙科超声手机中潜在污染分散颗粒的传播。
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正畸治疗过程中颗粒物释放的定量分析：一项初步研究。
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Prediction Model for Airborne Microorganisms Using Particle Number Concentration as Surrogate Markers in Hospital Environment.利用粒子数浓度作为医院环境中空气微生物的替代标志物的预测模型。
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Assessment of airborne particles and bioaerosols concentrations in a waste recycling environment in Brazil.评估巴西废物回收环境中的空气传播颗粒和生物气溶胶浓度。
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