Just moved area and no NHS dentists in the whole county. DH just went for a checkup with a private dentist. No problems, but over 2 years since last checkup due to pandemic etc. Lo and behold he's come home with a 'treatment plan' which will cost £400. I had similar a few years back, went to a private dentist who was offering free checkups, told me I could set up a payment plan for all the treatment I needed (had no problems, x rays fine). Then went to a NHS dentist who said there was no problem, and there hasn't been since then. I find it hard to trust what private dentists say .... as clearly you'd have to pay another one a further £100 for a 'new patient' checkup to see if they said the same.