the whole discipline is based on interpretation of symptoms. the job of a doctor is exactly like debugging a live system except when it crashes you don't get to

the whole discipline is based on interpretation of symptoms. the job of a doctor is exactly like debugging a live system except when it crashes you don't get to restart it. they actually investigate by testing their suspected diagnostic on you. they literally give you a medicine and don't know if it will work. that's their normal process. I think what happened to that dentist is he changed his diagnostic because of an external factor, like realising that removing the teeth is less risky with regards to getting sued by you.