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1.) Am I eating with my aligners on? - These aligners are removable and should be taken out when you eat.
2.) Am I drinking anything other than water with my aligners on? - Though it's not a necessity for you to take out your aligners while you drink, think about how sticky a soda is. If you take out your aligners when drinking a soda, you have a better chance of keeping your aligners clean.
3.) Am I brushing before putting the trays on? - The aligners have both an inside and outside. Keeping the outside clean is easy. Keeping the inside clean is also easy: just make sure you've brushed your teeth before putting the trays on.
These are all very simple steps, and ultimately, they help to keep you building good oral habits.
--Sondhi-Biggs Orthodontics