I hate dentists, i think they should have their books closely checked each and every year so they can't sneak through or recommend work that is unnecessary.
My parents put me into an orthodontist when I was a teen and he did so much work that wasn't needed, wisdom teeth removed, braces of the type they cement to the teeth, removal of lower canines, then root canals, caps.
Eventually he was caught,disbarred and i think got sent to prison.
Then came years of remedial work, and of course not being all NHS work, nobody to sue.
In the end i had to have most of then extracted, due to roots splitting and remedial bridgework putting too much strain on already damaged ones.
Those the dentists, consultants and dental hospital didn't remove, i was by way of lifestyle at the time forced to remove myself. 3 in total. I've tried all remedies for pain, only thing works is removal.
So as you can imagine i don't like, nor these days need their services. And when i hear than many are refusing NHS work, I can only see that as an industry that needs harsh regulations to prevent the hell i went through as a teen.