Between the ages of 6 and 8 I had 6 teeth pulled for absolutely no reason. The dentist said it was to make room, but if I remember right PERMANENT TEETH COME IN EVENTUALLY! It caused me to be terrified of dentists and all doctors for several years. Also didn't help my needle phobia. Shots in the mouth were NOT fun. They barely numbed it too so it really hurt obviously. It was just a really bad dentist that also didn't seem to know how to deal with scared kids.
Luckily when I got my braces when I was 11 I had a much better and nicer dentist, and I'm not afraid of dentists anymore. Although he once suggested I have one tooth pulled. I was 15 and it was my last baby tooth. I was still scared of that so I pulled out my own tooth

yeah bad idea...lol
Sorry if that was kind of a rant, I don't get an opportunity to talk about this stuff much and I'm still not too happy about that first dentist.