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Alexandria, Va., USA 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.