600 practices have withdrawn completely from NHS dentistry in ten years.
My DC, both adults were told their dentist wasn't going to treat them any more unless they went private. They have registered as private patients elsewhere.
Private dentistry is hugely profitable but it used to be focused on cosmetic dentistry and serving the wealthy. Now their patients are from all walks of life.
NHS work doesn't pay and there needs to be an alternative.
Perhaps clinics where the dentists are directly employed by the NHS. Recruitment would be difficult at first but I think the vast majority of the population would abandon private dentists and use the NHS if they had chance. I'm aware there are a few of these already. The waiting list for the one in my area is four years.
So gradually the private firms would lose patients and there would be more dentists to recruit.