When I got there and said I was healthy and I didn't need a mask, they told me I had to wait outside. So I left. And when they called me to say they were ready I went off and called them out for discrimination. Fuck them.
Update: I filed a complaint with their national website, received a call a little while ago about it, and got nowhere with the person on the other end of the line. At least I got another chance to bitch about how stupid it is that I was being discriminated against for being healthy.
I had to wear one today for about 30 seconds as I walked from the hall into the dental chair room. Even that was intolerable. But I needed to finish my root canal. You can't get these "medical people" to buck the system. They are all in.