Many chiropractors will also claim that they can directly observe the much lower incidence of cancer and heart disease in their patients, but that doesn't make it true.
Not relevant given that chiropractors are making money off said claims, and dentists are not. Dentists stand to make less money when their patients take care of their oral health with something that costs literally a penny per day.
People aren't automatically wrong just because they state something in their interest, nor are they right just because it's not. To me, the important difference between the two is that dentists can explain the basis of their recommendations in terms that make some sort of sense, whereas the mechanisms proposed by chiropractors are clearly nonsense.
