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Evaluating splatter and settled aerosol during orthodontic debonding: implications for the COVID-19 pandemic

Introduction Dental procedures produce splatter and aerosol which have potential to spread pathogens such as SARS-CoV-2. Mixed evidence exists on the aerosol-generating potential of orthodontic procedures. The aim of this study was to evaluate splatter and/or settled aerosol contamination during ort...

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Autores principales: Llandro, Hayley, Allison, James R., Currie, Charlotte C., Edwards, David C., Bowes, Charlotte, Durham, Justin, Jakubovics, Nicholas, Rostami, Nadia, Holliday, Richard
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7789079/
https://www.ncbi.nlm.nih.gov/pubmed/33414542
http://dx.doi.org/10.1038/s41415-020-2503-9
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author Llandro, Hayley
Allison, James R.
Currie, Charlotte C.
Edwards, David C.
Bowes, Charlotte
Durham, Justin
Jakubovics, Nicholas
Rostami, Nadia
Holliday, Richard
author_facet Llandro, Hayley
Allison, James R.
Currie, Charlotte C.
Edwards, David C.
Bowes, Charlotte
Durham, Justin
Jakubovics, Nicholas
Rostami, Nadia
Holliday, Richard
author_sort Llandro, Hayley
collection PubMed
description Introduction Dental procedures produce splatter and aerosol which have potential to spread pathogens such as SARS-CoV-2. Mixed evidence exists on the aerosol-generating potential of orthodontic procedures. The aim of this study was to evaluate splatter and/or settled aerosol contamination during orthodontic debonding. Material and methods Fluorescein dye was introduced into the oral cavity of a mannequin. Orthodontic debonding was undertaken with surrounding samples collected. Composite bonding cement was removed using a speed-increasing handpiece with dental suction. A positive control condition included a water-cooled, high-speed air-turbine crown preparation. Samples were analysed using digital image analysis and spectrofluorometric analysis. Results Contamination across the eight-metre experimental rig was 3% of the positive control on spectrofluorometric analysis and 0% on image analysis. Contamination of the operator, assistant and mannequin was 8%, 25% and 28% of the positive control, respectively. Discussion Splatter and settled aerosol from orthodontic debonding is distributed mainly within the immediate locality of the mannequin. Widespread contamination was not observed. Conclusions Orthodontic debonding is unlikely to produce widespread contamination via splatter and settled aerosol, but localised contamination is likely. This highlights the importance of personal protective equipment for the operator, assistant and patient. Further work is required to examine suspended aerosol. Zusatzmaterial online: Zu diesem Beitrag sind unter 10.1038/s41415-020-2503-9 für autorisierte Leser zusätzliche Dateien abrufbar.
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spelling pubmed-77890792021-01-08 Evaluating splatter and settled aerosol during orthodontic debonding: implications for the COVID-19 pandemic Llandro, Hayley Allison, James R. Currie, Charlotte C. Edwards, David C. Bowes, Charlotte Durham, Justin Jakubovics, Nicholas Rostami, Nadia Holliday, Richard Br Dent J Research Introduction Dental procedures produce splatter and aerosol which have potential to spread pathogens such as SARS-CoV-2. Mixed evidence exists on the aerosol-generating potential of orthodontic procedures. The aim of this study was to evaluate splatter and/or settled aerosol contamination during orthodontic debonding. Material and methods Fluorescein dye was introduced into the oral cavity of a mannequin. Orthodontic debonding was undertaken with surrounding samples collected. Composite bonding cement was removed using a speed-increasing handpiece with dental suction. A positive control condition included a water-cooled, high-speed air-turbine crown preparation. Samples were analysed using digital image analysis and spectrofluorometric analysis. Results Contamination across the eight-metre experimental rig was 3% of the positive control on spectrofluorometric analysis and 0% on image analysis. Contamination of the operator, assistant and mannequin was 8%, 25% and 28% of the positive control, respectively. Discussion Splatter and settled aerosol from orthodontic debonding is distributed mainly within the immediate locality of the mannequin. Widespread contamination was not observed. Conclusions Orthodontic debonding is unlikely to produce widespread contamination via splatter and settled aerosol, but localised contamination is likely. This highlights the importance of personal protective equipment for the operator, assistant and patient. Further work is required to examine suspended aerosol. Zusatzmaterial online: Zu diesem Beitrag sind unter 10.1038/s41415-020-2503-9 für autorisierte Leser zusätzliche Dateien abrufbar. Nature Publishing Group UK 2021-01-08 /pmc/articles/PMC7789079/ /pubmed/33414542 http://dx.doi.org/10.1038/s41415-020-2503-9 Text en © British Dental Association 2021 This article is made available via the PMC Open Access Subset for unrestricted research re-use and secondary analysis in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the World Health Organization (WHO) declaration of COVID-19 as a global pandemic.
spellingShingle Research
Llandro, Hayley
Allison, James R.
Currie, Charlotte C.
Edwards, David C.
Bowes, Charlotte
Durham, Justin
Jakubovics, Nicholas
Rostami, Nadia
Holliday, Richard
Evaluating splatter and settled aerosol during orthodontic debonding: implications for the COVID-19 pandemic
title Evaluating splatter and settled aerosol during orthodontic debonding: implications for the COVID-19 pandemic
title_full Evaluating splatter and settled aerosol during orthodontic debonding: implications for the COVID-19 pandemic
title_fullStr Evaluating splatter and settled aerosol during orthodontic debonding: implications for the COVID-19 pandemic
title_full_unstemmed Evaluating splatter and settled aerosol during orthodontic debonding: implications for the COVID-19 pandemic
title_short Evaluating splatter and settled aerosol during orthodontic debonding: implications for the COVID-19 pandemic
title_sort evaluating splatter and settled aerosol during orthodontic debonding: implications for the covid-19 pandemic
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7789079/
https://www.ncbi.nlm.nih.gov/pubmed/33414542
http://dx.doi.org/10.1038/s41415-020-2503-9
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