There are many benefits, not just cosmetic. Having a corrected bite means that you do not grind or wear out your teeth, preventing teeth from potentially cracking later on. It makes it easier to floss, preventing any gum recession from overcrowding. It can also widen your airway, eliminating headaches and also help with attention deficit disorder in some children. Having straight teeth can also help to balance your facial muscles, joint pressures, and help protect your gums so that they are healthy for a lifetime.