High-volume aspirators are recommended in dental clinics during the COVID-19 pandemic, but the study “SARS-CoV-2 Seropositivity Among Dental Staff and the Role of Aspirating Systems” published in the JDR Clinical & Translational Research (JDR CTR), shows that the type of aspirating system significantly affects the incidence of SARS-CoV-2 infection among dental specialists.
In this retrospective cohort study of 157 healthcare workers in Ekaterinburg, Russia, data on the seroprevalence of COVID-19 from dental clinics using three different types of aspirating systems were compared. Clinic A and B used a V6000 aspirating system with a vacuum controller and high-efficiency particulate air (HEPA) filters, but the aspirating system in clinic A functioned in dry mode and the system in clinic B function in semi-dry mode. Clinic C used the VS900 system which discharges air into the dental operatory, closely resembling natural dispersion, and no HEPA filter.
The estimated prevalence of SARS-CoV-2 infection was 11.5% (19 HCWs) across all clinics over the 5-month period (May to August 2020). The results show that the prevalence of SARS-CoV-2 infection was significantly higher in clinic C, which did not utilize HEPA filters, and was significantly lower in clinic A, which did utilize HEPA filters and operated in dry mode. In dry suction systems, the separation of aspirated fluids from the air occurs at every treatment unit, whereas in semi-dry suction systems the separation occurs via a central separation unit connected to multiple treatment units.
“No comparative studies have investigated the effects of the type of aspirating system on the risk of SARS-CoV-2 infection among dentists and dental assistants,” said JDR CTR Editor-in-Chief Jocelyne S. Feine, McGill University, Montréal, Quebec, Canada. “Based on the results of this pilot study, we recommend the use of aspirating systems installed with HEPA filters that evacuate and dissipate aerosols into specialized areas. Studies that provide a deeper understanding of this topic are warranted.”
COVID-19: Schools urgently need guidelines on improving ventilation in classrooms
M. Sarapultseva et al, SARS-CoV-2 Seropositivity among Dental Staff and the Role of Aspirating Systems, JDR Clinical & Translational Research, First Published February 5, 2021 Research Article doi.org/10.1177/2380084421993099
International & American Associations for Dental Research
Role of aspirating system type in SARS-CoV-2 seropositivity among dental staff (2021, February 8)
retrieved 8 February 2021
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.
- College Students With ADHD Have Lower Grades, Higher Dropout Rates - March 4, 2021
- खण्डवा की जल प्रदाय योजना की जलापूर्ति क्षमता को बढ़ाया जाए : मुख्यमंत्री श्री चौहान - March 3, 2021
- If You Are Struggling With These Health Problems, Potato Consumption Can Increase Your Problems - March 3, 2021
- Stem Cell Injections Show Early Promise Against Spinal Cord Injuries - March 3, 2021
- Presence and prevalence of salivary gland ectasia and oral disease in COVID-19 survivors - March 3, 2021
- ‘Rerouting’ Brain Blood Flow: Old Technique Could Be New Advance Against Strokes - March 3, 2021
- सिंचाई परियोजना में पेमेंट शेड्यूल में शिथिलीकरण का मामला - March 3, 2021
- Do Not Consume These 7 Foods At Night, Body Can Cause Serious Harm - March 3, 2021
- Incentives can reduce alcohol use among American Indian and Alaska Native people - March 3, 2021
- Talking Points: People Rarely End Conversations When They Want To - March 3, 2021