Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

A Review of Evidence: Using Respirators to prevent Sars-Cov-2 Transmission

Version 1 : Received: 13 August 2020 / Approved: 18 August 2020 / Online: 18 August 2020 (04:30:45 CEST)

How to cite: Nulty, A. A Review of Evidence: Using Respirators to prevent Sars-Cov-2 Transmission. Preprints 2020, 2020080372 (doi: 10.20944/preprints202008.0372.v1). Nulty, A. A Review of Evidence: Using Respirators to prevent Sars-Cov-2 Transmission. Preprints 2020, 2020080372 (doi: 10.20944/preprints202008.0372.v1).

Abstract

This literature review has been compiled to form an evidenced-based review on the standards for Dental Practices in their choice and use of personal protective equipment (PPE) within the COVID-19 Pandemic and beyond: it is prepared on the basis of the current best available evidence. The review encompasses risk management strategies for both Dental Personnel and Patients in the application and use of Face Masks & Respirators.In summation, from the evidence available, it is apparent that in the lab setting N95/FFP2 masks are superior in their efficiency but in the clinical setting such a difference is not seen as clearly. As such the minimum standard of care should be that of a standard surgical mask. Faced with the emergence of the virulent disease that is Covid-19, it is logical to use FFP2/N95 respirator masks in aerosol generating procedures where they offer greater resistance to fluid penetration and a better face seal when adequately fit tested as a gold standard. But if a dry field isolation technique involving high volume evacuation is used, there is no clear benefit of respirator masks (N95/FFP2 or N99/FFP3) when balanced with the extra risk of compliance, cost and comfort in wearing a standard fluid-resistant surgical mask.

Subject Areas

sars-cov-2, covid, covid-19, masks, dentistry, respirator, n99, n95, ffp2, ffp3,

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