One major issue is that the biggest money maker for dentists, cleaning/scaling, is basically nothing more than a cosmetic procedure that has little to no medical value. Getting your teeth cleaned by a dentist is something many adults with health coverage do on a yearly basis, and yet it serves little to no purpose.

So how do you integrate that into the health care system as a whole? Do you just continue having people see the dentist every year and get their teeth cleaned to continue the tradition so that dentists can continue to get paid? Do you eliminate it and then put a large number of dentists out of business?

A great deal of common dental care as a whole is not actually based on any kind of science or research. Certainly some of it is legitimate and the article points out the few cases where there is a strong connection, but that makes up an absolute tiny minority of dentistry as a profession in terms of the money.

https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD...