I try that too, but they don't want to treat you if you don't get them even though they are treating an external organ (they are going to drill/grind it anyways), and dental x-rays are linked to brain tumors: https://www.webmd.com/cancer/brain-cancer/news/20120410/dent......
Also I had my fair share of dentists that do root canals for no reasons...
I'm thinking about going to a poor country to get my next treatment...