Chances are you already have a lot bacteria in your mouth and once you eat your breakfast (which for many is sugary) they immediately eat and consume this and produce acid. So, brush before breakfast, supposedly.
I _do_ spit out excess toothpaste, which I understand still leaves enough toothpaste in your mouth for it to do it's thing.
The evidence is just lacking, people are just using judgement to advise on something that we can't detect one way or another with research.
When it comes to dental care it's not even clear, based on research (Cochrane review in 2019) it flossing makes any difference let alone a clinically useful difference.
The current advice is just based on reasoning that either you brush first or wait a hour after eating due to the abrasive action of brushing.
I feel like replacing "brushing teeth" with literally anything and your sentence is also correct and a good way to think. Especially the things we think are easy. There's a reason it took us thousands of years to do certain things.
Didn’t people not brush at all in the past but still had perfect teeth?
How long would you recommend to wait? Or perhaps a good rinsing of teeth before brushing would be enough?
* Disclaimer: I am not a dentist, you should find a good one and talk to them for real advice.
Then my cousin discovered he’s allergic to SLS. I quit toothpaste with SLS and I never get them anymore. It’s rare but you never know who else struggles with it and doesn’t know.
The solubility of enamel is insanely low so the effect should be minor at most, but still.
And don’t use Listerine etc, their alcohol content is way too high and leads to cancer over time apparently.
