Non Rude Dentist?

My boyfriend is self conscious about his teeth and has anxiety about going to the dentist because of it.

Today his current dentist told him his teeth were a "Trainwreck" (they're not, he's just having wisdom teeth issues). But now he's stressed about going back in for more dental work because the root canal failed.

Can anyone give recommendations for a dentist that is professional and maybe good with people with dentist anxiety?

If possible, I'd like to avoid the offices that refuse to talk pricing beforehand and then tell you to pay $1,000 immediately upon leaving the chair. He has good insurance but our expendable income is limited.

Edit: Thank you all for all the amazing recommendations! I did not expect that much of a response, I've given the names over to my boyfriend. Thank you ❤️