Though I'm not optimistic about either its ability to fund healthcare or assess its quality.
Dental problems are two fold, genetic and habitual.
There are people who brush and floss 2x a day and have miserable teeth, their personal biome and genetics have screwed them.
Then there are people like me, I skipped the dentist for 2 years and when I went the dentist said my teeth looked perfect. (Though being on a keto diet for that time might have helped, one dentist I had said keto is the perfect diet for dental health! :) )
This was in the early days of keto, back when you couldn't find any keto products at the store and it was just a small subreddit that spread by word of mouth.
I described my diet to my dentist (no carbs at all, no sugar, lots of green veggies, healthy meats and fats, all home cooked), and she instantly approved of it.
IMHO Keto has gone off the rails, no true scotsman and all of that. In the early days keto shared a lot of dietary stuff with paleo in regards to no processed ingredients, everything from scratch, and I think that made a real difference in how effective it was.
Before if I wanted keto ice cream I had to make keto ice cream. Now I can just buy it at every local grocery store. Well excess calories are still excess calories...
Also the prepackaged keto stuff isn't as satiating as from scratch keto food, and half of the benefit of keto is the food is supposed to be more satiating.
/rant
Not really. A dentist fixing your dental cavity doesn't stop you from gettinga new one in 10 years.
Sometimes you don't even need that.
If you ever want to feel depressed, go to your city's subreddit and search for "what business will you never go to again?" I remember one popped up on my city's sub recently, and it made me incredibly thankful for my dentist. The sheer amount of shit some get away with (while having ritzy offices in expensive neighborhoods) is incredible. And sure, such a thread is bound to attract people who have had negative experiences, but the sheer quantity of complaints some places had (with nobody chiming in to defend them or say something to the effect of "I've never had any problems like that") spoke for itself.
The logic goes for a lot of service type situations like auto-repair post-warranty period.