If you've been periodically rocking canker sores on your inner lips, then it might have to do with the kind of toothpaste you're using. Featured Video Yes, it seems unfair that you, being a ...

Can toothpaste stain teeth? That seems counterproductive as toothpaste is meant to clean teeth. Some brands even go so far as to brand themselves as "stain-fighting" or "stain-erasing." Featured Video ...