UPDATED GUIDELINES FROM THE CDC
The MDA and the ADA have been relying upon the Center for Disease Control (CDC) guidelines over the course of the pandemic. As such, the September 23, 2022 CDC guidelines are the latest guidance in determining the level of source control needed in dental practices, referencing the levels of county transmission as the determining factor. Transmission levels are updated weekly on Thursday evenings at this website: https://www.cdc.gov/coronavirus/2019-ncov/your-health/covid-by-county.html.
To that end, in accordance with the latest CDC guidance (https://www.cdc.gov/coronavirus/2019-ncov/hcp/infection-control-recommendations.html), whatever the level of transmission of the county in which a specific practice is located would be the guidance to follow for that practice.