Getting your braces on does not hurt. In fact, braces are glued onto the surface of your teeth similar to the way that a sticker is applied to a shirt: it’s that simple! At first, you will feel like you have bumps on your teeth, and it takes a while to get used to that feeling. Once your teeth will start to move (usually within a few hours), that is where you will most likely notice some soreness. This can feel like a little or a lot of pressure depending on the severity of your case. By alternating Advil, then Tylenol as your doctor or orthodontist recommends, this is the best way to eliminate any discomfort. This can last anywhere from a few days up to one week.