Teeth aligners shift your teeth into better places by gently exerting pressure. Every tray set is a little different from the one before it. After wearing them for roughly two weeks, you go on to the next pair. You keep going through this process until your teeth are in their ultimate places, which is why many people prefer the best smile aligners. https://holotechinfo.com/how-do-you-pick-your-ideal-smile-aligners/