中文版 | English
Title

Suppress the aerosol generation from the air turbine handpiece in dental clinics

Author
Corresponding AuthorWang, Yuenan; Yang, Hongyu; Deng, Weiwei
Publication Years
2022-08-01
DOI
Source Title
EISSN
2158-3226
Volume12Issue:8
Abstract
The COVID-19 pandemic imposes a severe challenge to the health care providers and patients in dental clinics as the dental procedures produce abundant airborne materials. Although dental practices use a multi-layered protective procedure to reduce the potential danger from dental aerosols, it is still beneficial to suppress the aerosol generation from the origin as much as possible. Reducing the aerosol generation (especially the droplets of smaller diameters) from the very beginning will ease the burden on all subsequent layers of protection. In this work, we first provide a relatively complete picture of the structure of the spray produced by the air turbine handpiece. We found that the spray consists of two domains: one is the canopy shaped centrifugal zone and the other is a dense ballistic spray core. The droplets from the centrifugal zone are much smaller than those of the spray core and, hence, are more prone to stay in the air. The location of the centrifugal zone also makes it more challenging to be contained by the mouth or rubber dam. To suppress the atomization of the centrifugal zone, we used the food-additive carboxymethylcellulose sodium (CMC-Na) water solutions of different concentrations. The data show that the viscoelastic property of the 0.5 wt. % CMC-Na water solution can effectively suppress the aerosol generation of the centrifugal zone. (C) 2022 Author(s).
URL[Source Record]
Indexed By
SCI ; EI
Language
English
SUSTech Authorship
First ; Corresponding
Funding Project
National Science Foundation of China[12041601] ; Science, Technology and Innovation Committee of Shenzhen Municipality["2020-148","2021-255"] ; Sanming Project of Medicine in Shenzhen[SZSM 201512036] ; Shenzhen Fund for Guangdong Provincial High-level Clinical Key Specialties[SZGSP008]
WOS Research Area
Science & Technology - Other Topics ; Materials Science ; Physics
WOS Subject
Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS Accession No
WOS:000843002000011
Publisher
EI Accession Number
20223612701189
EI Keywords
Aerosols ; Centrifugation ; Viscoelasticity ; Wind turbines
ESI Classification Code
Wind Power (Before 1993, use code 611 ):615.8 ; Chemical Operations:802.3 ; Physical Properties of Gases, Liquids and Solids:931.2
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/394127
DepartmentDepartment of Mechanics and Aerospace Engineering
Affiliation
1.Peking Univ, Shenzhen Hosp, Dept Radiat Oncol, Beijing, Peoples R China
2.Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen, Peoples R China
3.Peking Univ, Shenzhen Hosp, Dept Oral & Maxillofacial Surg, Beijing, Peoples R China
4.Shenzhen Ctr Dis Control & Prevent, Guangdong, Peoples R China
First Author AffilicationDepartment of Mechanics and Aerospace Engineering
Corresponding Author AffilicationDepartment of Mechanics and Aerospace Engineering
First Author's First AffilicationDepartment of Mechanics and Aerospace Engineering
Recommended Citation
GB/T 7714
Chen, Daner,Wang, Zheng,Yu, Boyang,et al. Suppress the aerosol generation from the air turbine handpiece in dental clinics[J]. AIP ADVANCES,2022,12(8).
APA
Chen, Daner.,Wang, Zheng.,Yu, Boyang.,Tang, Xiujuan.,Shen, Yuehong.,...&Deng, Weiwei.(2022).Suppress the aerosol generation from the air turbine handpiece in dental clinics.AIP ADVANCES,12(8).
MLA
Chen, Daner,et al."Suppress the aerosol generation from the air turbine handpiece in dental clinics".AIP ADVANCES 12.8(2022).
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