Because you need to wear your aligners for at least 20 to 22 hours each day, you should only remove them when necessary. You should remove your aligners when:
Eating a meal
Using mouthwash
Drinking something other than plain water
Brushing and flossing
Cleaning or soaking your aligners
If you don’t remove your aligners at these times, it may damage your aligners, which can set back your treatment. It may even increase the number of harmful bacteria in your mouth.