Hello, Sorry to hear of your troubles. I'd be very confused too

If you are worried about your last dentist or the new dentists findings I would get a 2nd or 3rd opinion? Are you doubting the new dentists or....? If you are doubting either which I would be in your case I'd go get another opinion without telling them what you've been told before

See what they say?
If you really believe this new dentist yes I'd look into reporting the first one
Good luck
Chatty8484