The use of invisible aligners is a daily daily, in general three meals a day when you eat, you have to take off to eat, after eating to clean your teeth and rinse your braces briefly before you can put them on, such a process. So at least 3 times a day to take off and wear, not including eating other things in between, or drinking colored beverages in between, drinking cola, coffee, also to take off the invisible aligners. What happens if you don’t take them off? The color will stain the braces, turning them teal, turning them brown, which seriously affects the aesthetics. Each aligner has to be worn for ten days to two weeks, and no one wants to wear yellow braces for ten days to be visible. So maybe the number of removals and wears is not just 3 removals and wears, it may have to be more.