I sympathize with you some dentists and orthodontis are a nightmare of arrogant, conceived, deceptive bunch. My two NT kids needed braces so after "interviewing" several we settled for one we thought "reasonable", "kid-friendly" but he was the worse of the lot, just more cunning in his deception. But I got an excellent dentist for my autistic boy and he stayed with him for about 20 years through the haze and crazy daze of drugs. We didn't have insurance for orthodoncy so it was expensive experience.