There are explanations that sound reasonable to me as to why, as you put it, "rinsing your mouth with it and then swallowing all of it immediately" still has a

There are explanations that sound reasonable to me as to why, as you put it, "rinsing your mouth with it and then swallowing all of it immediately" still has a positive effect on your teeth. Have you looked into those at all, and if so, do you dismiss them all as lies?