It is advised to brush your teeth at least twice a day, but when? Just before bed is a gimme because you’re about to lie mostly still for 6+ hours. Best to not leave food particles to fester.
What’s the best time for an earlier brushing? After breakfast? After lunch? After work/school?
Plus, what’s up with TV and movies having breakfast scenes where they get up and head right out the door? Did they already brush and now they’re going to leave food to fester all day? Eww.
Most people will say its generally after you eat but I personally believe it should be before and after you sleep (including naps). I noticed that after naps my mouth feels very weird and things taste different but brushing my teeth stops that. Cavities mainly form while you sleep not while you are awake so going about your normal day with dirty teeth isn’t going to harm you even though its a bit gross.