You don’t want to eat after brushing in the evenin. It is not the end of the world if you do it very rarely.

I used to use brushing my teeth in the evening as a wight loss strategy. Don’t wanna eat with a clean mouth.

I heard on the radio at some point that it’s not great to eat after brushing, but it’s more important to brush your teeth at all. Unfortunately, they didn’t explain why, but from what I can tell, brushing your teeth with (normal) toothpaste does two things:

• Removes the plaque from your teeth, which is basically a layer of bacteria, which can damage the enamel, since they can produce acids. Or if you don’t brush for a longer time, they can form into hard layers which cannot be brushed away (so-called calculus/tartar).

• Repairs the enamel by providing fluoride molecules, which stick into places where the enamel is missing molecules. This is important in particular, since the places with missing molecules are more likely to get further damaged by the acids.

So, if you eat after brushing, you’re providing new food to the bacteria, which allows them to form into a new layer of plaque.
But it’s gonna take a few hours to re-form the new plaque, during which your teeth won’t get damaged as much anyways. And the new plaque sits on top of freshly repaired enamel, too.

This is definitely simplifying it, too, like apparently plaque can also affect the gums and obviously different people have more or less problems with teeth in general, but it still seems plausible to me…

I don’t think it matters to your dental health as long as it’s not a regular thing. but for me, I would always rebrush in a scenario like that just because I can’t really go to sleep without a freshly brushed mouth.

If you’re going to do it, at least rinse your mouth after you eat. And actually, according to my hygenist, it’s good practice to always rinse your mouth after you eat.

One time, probably fine. But I would avoid doing it all the time. Food remnants just sitting in there for 6-8 hours while you sleep is not good.

2 things i have noticed which wasnt pointed out by others:

1. You should be flossing then brushing.
2. Water flossing isnt a replacement to regular flossing.

Do not brush immediately after eating or vice versa. It hurts your teeth’s coating

i would just rinse it with mouthwash if you dont want to brush again. as long as you are not using a super-abrasive brush, or brushing aggressively, some toothpaste are pretty abrasive to the teeth.

Ideally, don’t eat after you brush your teeth/floss, wait at least 30 minutes and don’t eat (or drink anything other than water) before bed.

Realistically, it’s not going to kill you or anything but if you do it a lot, you will be more likely to end up with cavities.

Don’t overthink it. Most people don’t brush their teeth at night at all and have no problems.