Worst case scenario, you go abroad within the EU for that, and pay out of pocket. You just make sure to vet out the dentists well. Italians often go to Croatia for dental care. But, Poland has good cheap dental care too.

Hence me saying 'on average'. In a sane country, you can use insurance to convert variable payments into average payments (plus a bit of overhead).

Or, you just self-insure for dental, if you make a reasonable amount of money or have some savings.

(It's much more feasible for dental where the realistic maximum amounts are still quite small, compared to cancer treatment or similar.)