comments on r/EverythingScience
12 points
10 points
And you’re basically supposed to do the same thing twice a day with your toothpaste, which is why the tube says “spit out after brushing” and not “make a little cup with your hand and use it to swish some water from the sink around in your mouth, rinsing most of the fluoride off before it has a chance to work”.
3 points
1 point