Handwashing revisited in dental practice during the COVID-19 outbreak

Healthcare-associated infections are well-studied in the literature, but remain a significant challenge for healthcare workers (HCWs) in dental practice. This type of infection is strongly correlated with the hand route of transmission of infectious agents. Thus, hand hygiene can be considered a crucial element in the prevention and control of infections. The coronavirus disease 2019 (COVID-19) outbreak is an experience of a new human coronavirus infection that has been difficult for HCWs, such as dentists and dental assistants, to control. Handwashing (HW) is a keystone method for the prevention and control of spreading severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). In healthcare settings, contrary to the general consideration of HW as a simple practice, HW is regarded as a specific procedure that should be clearly instructed to HCWs. Handwashing is based on using a correct method and the necessary equipment, and its role should be continually emphasized to reinforce compliance. Proper HW might contribute to avoiding possible cross-infection during healthcare activities, particularly in the pandemic situation. The aim of this article was to report on different HW techniques in medical and dental practice, and appropriate HW equipment to perform this simple but important procedure to prevent cross-infection, particularly during the current COVID-19 outbreak.