I had braces for about 3 years because I really needed them to take care of an overbite and crooked bottom teeth. They were the metal ones, as that's all that existed when I had braces, and the thing I really hated was the glue that was used because it tasted pretty nasty. They also hurt when I had them tightened, to the point where it hurt to eat dinner on the evening of those appointments. I had a retainer that I wore at night for several years as well as a wire glued to my lower teeth until it came off.
Because of having braces, I had to have my wisdom teeth taken out because with the way they were comming in, they would have ruined what the braces did, if they didn't become abcessed and infected like what happened to people I know. There's no correlation between Aspergers and crooked teeth because everyone else I knew who had braces were NT's.
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"I do not feel obliged to believe that the same God who has endowed us with sense, reason,
and intellect has intended us to forgo their use."
- Galileo Galilei