I grew up thinking that this was correct. "Just got my teeth dirty, time to clean them." At some point, I heard that the opposite was true, ostensibly from a d

I grew up thinking that this was correct. "Just got my teeth dirty, time to clean them." At some point, I heard that the opposite was true, ostensibly from a dentist on reddit. According to this anonymous stranger, after eating, your enamel is at its weakest, and you'll do the most damage to your teeth by brushing them. The reason was something about saliva and/or plaque that's been recently fed, I think. (As a side note, some other dentist(?) in the same thread said that if you're going to brush your teeth once a day, it's most important to brush before going to bed.)