Special care and new environments
S Carr, P Hassandarvish, V Tiong, Malaya, Malaysia A B Sazaly, N A Mohamed, Kuala Lumpur, H Arumugam, A Ananthanarayanan, M Qasuri, Singapore Y Hadjiat
British Dental Journal, doi:10.1038/s41415-020-1786-1
30 and 60 seconds treatment exposure under both clean and dirty conditions. In contrast, when PVP-I was tested at 1:2 dilution a >4 log10 kill at 15 seconds and >5 log10 kill at 30 and 60 seconds in comparison to control was seen in both clean and dirty. Dental practice poses a potential risk of COVID-19 cross-infection among patients, dentists and their assistants through direct exposure to saliva and indirect contact through contaminated instruments. 3 Several associations, including the Australian Dental Association, have recommended using a preprocedural mouthwash with products such as povidone iodine. 4 In our study, we present direct evidence of the virucidal activity of PVP-I gargle and against SARS-CoV-2 in just 15 seconds. In today's scenario, PVP-I gargle and mouthwash could be an adjuvant to PPEs in reducing the risk of COVID-19 transmission in healthcare practices, especially when oral interventions are warranted, such as in dental practice.
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