I hear ya @denimflowers Me and DH have been fairly fortunate. We had dental check ups in Dec 2019, just before the whole covid thing started, and neither of us needed treatment. They closed end of March 2020.
Mid April 2020 I got a bad pain in what seemed to be the nerve of a top tooth. Suffered for 3 or 4 days, and it got more intense each day.
Panicked as they were shut of course. By day 4, I self-medicated with cocodomol and brandy! Knocked back 4 or 5 shorts, with 3 cocodomol. I know this sounds bad, but the pain diminished by 50% overnight. Did the same the next day. By the end of the next day the pain was gone.
Anyway, I digress. They reopened July 2020, and everything was fine with that tooth when I went for a check up in late September, but I did need a filling re-doing at the back. DH got seen the same day and was OK. Nothing needed doing.
We both went May 2021, and all was OK with our teeth again.
However, we both had check-ups booked for mid Jan 2022, and it's been cancelled three times. It was cancelled in mid Jan and rebooked for late Feb, then cancelled again and rebooked for early APRIL, then they tried to cancel AGAIN, and rebook for late JUNE. I had had part of another filling chip off, and said 'Sorry, but I really can't wait another 2 months.' So they squeezed me in with another dentist, who fixed it for me (early April.) DH's appointment has been changed to late June though. Hope it's not cancelled again!
Oddly they seemed to not be too far behind when they first re-opened (August 2020) but by late 2021/early 2022, they seemed to be really dropping behind. A couple of dentists leaving, a couple getting covid and being off for 2-3 weeks, and a couple more going on holiday and being away for 3 weeks and 2 months respectively has not helped the situation.
At least we are registered with an NHS dentist though, And we are thankful for that, because we know if something goes wrong and we are in bad pain, that we will be seen within a day. SO many people cannot get onto an NHS Dentist waiting list (or have been kicked off for not attending for 2 years,) so we are happy we are registered with one.
Hope you get it sorted!