dentist and covid risk

Does anyone know of a Boston-area dentist whose staff are still masking consistently. I'm in Brighton, but willing to travel a bit, preferably by T.

I just called my dentist and asked about covid protocols, and the person said "covid protocols?" as if nobody had asked her that in ages. I explained I wanted to know what their rules about masking are, and was told "if you want to wear a mask you can." I said "thank you, I may need to reschedule" and hung up.

The receptionist called back (thinking we'd been cut off accidentally?), and said the doctors were masking, and the hygienist when I asked about that. However, the rest of the staff aren't, but "you can ask them to wear a mask" and "everyone is vaccinated."

The reception area/waiting room at that office is small, and by the time I asked anyone working there to put on a mask, they would have had several hours to spread any virus they happened to be carrying.

On the one hand, this is not good; on the other, would another medical practice be any better here?
My appointment is next Wednesday, so I have some time to brood think about this. I may call and ask to reschedule for the first appointment of the day (any day), to reduce possible exposure to other patients. Even if the staff are all vaccinated and boosted, it's unlikely that all the other patients are.