Arizona is a state with very high COVID-19 occurrence. I think some dental offices here are using studies like this to try to scare us into going in for routine cleaning. In my opinion the chances of catching the virus is higher in a dental office setting than taking care of oral hygiene at home with regular brushing, flossing and gum care. I would only go in if I had problems. I would rather just brush twice a day paying attention to my gums, floss after every meal and rinse my mouth after any food ingestion. I will wait for the COVID-19 threat to dissipate before I went for anything routine, exams or preventive treatments.