Cargando…

Dispersion of Aerosols Generated during Dental Therapy

The novel coronavirus pandemic has resulted in an urgent need to study the risk of infection from aerosols generated during dental care and to conduct a review of infection controls. However, existing studies on aerosol particles related to dental treatment have mainly evaluated only the scattering...

Descripción completa

Detalles Bibliográficos
Autores principales: Takanabe, Yusuke, Maruoka, Yutaka, Kondo, Junko, Yagi, Shotaro, Chikazu, Daichi, Okamoto, Ryuta, Saitoh, Masao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8583477/
https://www.ncbi.nlm.nih.gov/pubmed/34769795
http://dx.doi.org/10.3390/ijerph182111279
_version_ 1784597213573283840
author Takanabe, Yusuke
Maruoka, Yutaka
Kondo, Junko
Yagi, Shotaro
Chikazu, Daichi
Okamoto, Ryuta
Saitoh, Masao
author_facet Takanabe, Yusuke
Maruoka, Yutaka
Kondo, Junko
Yagi, Shotaro
Chikazu, Daichi
Okamoto, Ryuta
Saitoh, Masao
author_sort Takanabe, Yusuke
collection PubMed
description The novel coronavirus pandemic has resulted in an urgent need to study the risk of infection from aerosols generated during dental care and to conduct a review of infection controls. However, existing studies on aerosol particles related to dental treatment have mainly evaluated only the scattering range. Few studies have been conducted on the specifics of the generation of aerosol particles in clinical settings, their mechanisms and patterns of distribution throughout open or enclosed spaces, the duration that they remain suspended in air, and the amount and size of particles present. To minimize the influence of background particles, laser lights, a high-sensitivity camera, and particle counters were used in a large super clean laboratory to investigate the dynamics of aerosols generated during the operation of dental micromotors. The results indicate that aerosols tend to scatter upward immediately after generation and then gradually disperse into the surroundings. Most of the particles are less than 5 µm in size (only a few are larger), and all particles are widely distributed over the long term. Our research clearly elucidates that aerosols produced in dental care are distributed over a wide area and remain suspended for a considerable time in dental clinics before settling.
format Online
Article
Text
id pubmed-8583477
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-85834772021-11-12 Dispersion of Aerosols Generated during Dental Therapy Takanabe, Yusuke Maruoka, Yutaka Kondo, Junko Yagi, Shotaro Chikazu, Daichi Okamoto, Ryuta Saitoh, Masao Int J Environ Res Public Health Article The novel coronavirus pandemic has resulted in an urgent need to study the risk of infection from aerosols generated during dental care and to conduct a review of infection controls. However, existing studies on aerosol particles related to dental treatment have mainly evaluated only the scattering range. Few studies have been conducted on the specifics of the generation of aerosol particles in clinical settings, their mechanisms and patterns of distribution throughout open or enclosed spaces, the duration that they remain suspended in air, and the amount and size of particles present. To minimize the influence of background particles, laser lights, a high-sensitivity camera, and particle counters were used in a large super clean laboratory to investigate the dynamics of aerosols generated during the operation of dental micromotors. The results indicate that aerosols tend to scatter upward immediately after generation and then gradually disperse into the surroundings. Most of the particles are less than 5 µm in size (only a few are larger), and all particles are widely distributed over the long term. Our research clearly elucidates that aerosols produced in dental care are distributed over a wide area and remain suspended for a considerable time in dental clinics before settling. MDPI 2021-10-27 /pmc/articles/PMC8583477/ /pubmed/34769795 http://dx.doi.org/10.3390/ijerph182111279 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Takanabe, Yusuke
Maruoka, Yutaka
Kondo, Junko
Yagi, Shotaro
Chikazu, Daichi
Okamoto, Ryuta
Saitoh, Masao
Dispersion of Aerosols Generated during Dental Therapy
title Dispersion of Aerosols Generated during Dental Therapy
title_full Dispersion of Aerosols Generated during Dental Therapy
title_fullStr Dispersion of Aerosols Generated during Dental Therapy
title_full_unstemmed Dispersion of Aerosols Generated during Dental Therapy
title_short Dispersion of Aerosols Generated during Dental Therapy
title_sort dispersion of aerosols generated during dental therapy
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8583477/
https://www.ncbi.nlm.nih.gov/pubmed/34769795
http://dx.doi.org/10.3390/ijerph182111279
work_keys_str_mv AT takanabeyusuke dispersionofaerosolsgeneratedduringdentaltherapy
AT maruokayutaka dispersionofaerosolsgeneratedduringdentaltherapy
AT kondojunko dispersionofaerosolsgeneratedduringdentaltherapy
AT yagishotaro dispersionofaerosolsgeneratedduringdentaltherapy
AT chikazudaichi dispersionofaerosolsgeneratedduringdentaltherapy
AT okamotoryuta dispersionofaerosolsgeneratedduringdentaltherapy
AT saitohmasao dispersionofaerosolsgeneratedduringdentaltherapy