/ck/ - Food & Cooking

>>8651632
The "coating" you speak of is a biofilm called plaque and no it is not beneficial at all. It's the reason why people get gum diseases and have their teeth become loose and fall out. Ever experienced that burning sensation with peeling skin around the bases of your teeth? On the occasions when you do brush, notice that your gums bleed? Do you shred dental floss?
That's the plaque forming into tartar, wedging itself between your tooth and the gum. If you don't brush and have teeth cleaning done twice a year (or a process called 'scaling' if it's bad enough), you get periodontal disease which includes getting your teeth fucked by caries and decay until your dentist pretty much has to pull your teeth out because your actual jaw can't hold them anymore. You cannot remove tartar yourself, it gets buried underneath your gums to a point where brushing doesn't help.

Best unfuck your worldviews or be prepared to enter a world of shit by your early 30s, at best.