There's an old 19th Century theory that oral hygiene is the lynchpin of integrity for the health of the rest of the body.

Think about it: yr mouth is a big, open, gaping wound in the middle of yr face. Disinfect it as best you can, as often as you can. https://twitter.com/chaosprime/status/1249925441336508416

Buy a tongue scraper.

Floss, scrape, and brush after every meal. It only takes about 5min and it's so worth it.

Carbs will give you cavities. But animal products won't.

If you are beef for every meal, you would never get a cavity again.

Also, when drinking coffee, use a straw so that you don't stain your teeth.