Does whitening gum really work
I was just thinking about whitening gum. I do not see how it really whiten your teeth. Assuming whitening gum does works, just what is it really whiting. Unless you chew your gum differently then most people, would not the gum only then whiten the back of your teeth? Really even that wrong more like the tops of your molars. So how does whitening gum whiten your front teeth?