When you first get braces on, your teeth will hurt or you may be in some amount of discomfort for several weeks. After about a month, it will get better. In a few months, you may even forget that you are wearing them. Within 3 months you will probably be able to eat almost anything you like. In six months, you might even be able to bite into hard cookies, chips, and crusty bread again. (Eat these things in moderation and always be careful).