There's some guy advertising a toothpaste on Instagram right now that supposedly does kill one(?) of these specific microbes, but it's like, OK, so what? You st

There's some guy advertising a toothpaste on Instagram right now that supposedly does kill one(?) of these specific microbes, but it's like, OK, so what? You still have to brush your teeth. So maybe there's development in this space, I don't know, but from what I've seen it all sounds like wank anyway.