Why: Because most toothpaste has FLOURIDE in it. If you use mouthwash AFTER brushing, it reduces or eliminates/diminishes the amount of fluoride that is deposited on the teeth surfaces when you brush.
BTW: rinsing your mouth with water after brushing does the same thing.....
@helsbels I take flossing very seriously bc when I was a kid I never flossed and got cavities BETWEEN my teeth. I didn't even know that was possible. 😭
I think that if you mouthwash after brushing it rinses away any plaque defence from the toothpaste.Mouthwash really has little dental benefit,its just to freshen your breath per se.
Brushing then mouthwash to start the day, plain old brushing alone before going to bed -- unless you;re having company in bed, then finish with the mouthwash again.