Kahng. More Teeth Whitening Stories That whitening mouthwash and “crystal-diamond-quadruple-white” toothpaste you’ve been banking on? Those are mainly cleaning up stains found on the outer ...

Whitening, on the other hand, actually changes the colour of the teeth from the inside out. “We’re talking about removing those stains, breaking them up, and lifting them out of the teeth ...

If you’re considering dipping into at-home teeth whiteners, the first thing to do is figure out what kinds of stains you’re dealing with. In some cases, deep stains can’t be removed through ...