Well, you don't decide if you need braces, your dentist tells you that you need to visit an orthadonist who will tell you if you need braces, retainer, expander, ext. It's not your choice to have braces!!!
They put cement on your teeth and put these little things that hold the wire on your teeth... its not fun, but it doesnt hurt, plus it doesnt hurt getting them off. I got mine off last year.
Of course not. If your dentist feels you need braces you will be admitted to an orthodontist, to help sort the problem. However if you do feel that there is a problem, and your dentist hasn't...
No, usually after several visits you would get a screening and then they would make an app. for you to get braces. It normally takes a LONG time. (it did for me)