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.
I think ideally you’d brush your teeth after every meal, but that would require having a toothbrush with you at all times and I’m too lazy for that. Brushing twice a day is good enough; once around 10-15 minutes after eating breakfast/ the first meal of the day and right before bed.