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.
My dentist told me it actually takes ~24 hr for plaque to harden up into calculus so not to be too hard on myself if I only manage once a day. I think twice a day is probably best especially if spots are missed, but I rarely manage the morning cause I drink coffee all day and brush after my nightly shower.