I read recently about a dentist who had to put up with a patient rolling their eyes and acting skeptical as the dentist discussed treatment. The dentist was giving perfectly reasonable advice and the patient did not want to accept it. It was an issue of control.
If I were the dentist, I would have said: “If you want to be a patient in this practice I need to thoroughly examine your teeth prior to commencing treatment. I fully respect your right not to have your teeth examined, but if that is your choice you will need to pursue treatment elsewhere.”
Focus on the patients who let you do your job and move on from the ones who are aggressively annoying. You can’t please everyone and trying to will give you a heap of stress.