Still paying the price, 30 years on, for my old small town dentist blasting giant silver fillings into my new (at the time) adult teeth that almost certainly did not have deep cavities. No pain, but I know when they fail (my friends' fillings have already started to fail) it'll be a world of pain as there is not enough tooth left to fill, and the silver filling is so poorly done a cosmetic crown is unlikely.
I looked him up again later in life, wondering if anyone had dug into his fraud, and only found a sad/lonely obituary which seems fitting for a scam artist defrauding a small town.
F' that dude and the industry that trained and supported him, and I see no call out of dentists against their con-artist colleagues, so they must all be complicit.