I got very lucky on that front, I'd been NHS registered at my dentist since ~2010, but they postponed my checkup around '21 due to covid rules and didn't automatically give me a new date.I probably need loads, but I have 0 because I don't have a dentist. Successive governments (including Labour) got rid of NHS dentists. A colleague of mine ran up a £3,600 bill last year, so I would have to re-mortgage my house if I went now.