I had braces for a year and a half and had an expander in for nine months beforehand. Weirdly enough, I didn`t mind going to the ortho! Of course, I very much minded the ortho who decided to pull my last baby tooth out without even telling me. (It was wobbly but STILL. My dad rushed in as everyone in the waiting room had heard my shrieks.) Taking off the silver bits around my teeth from my expander was the scariest process for me as some of my gum had grown over it (it happens when you have the things on for 2+ years) and they were on tight. I asked the ortho to please not accidentally pull the tooth out!
My last dentist was really great but I`m terrified of having my three fillings done by my new one. :`( Honestly, I have regular nightmares about terrible things happening to my teeth. Cracking, chipping, falling out, turning black from decay, etc. I`m really paranoid about my teeth – I mean, you only get one set! – and this is why I make myself go to the dentist yearly or ever months.