Over-the-counter whiteners have been flooding the market for many years.  Each with it’s own gimmick, or gadget, or promise of sparkling white teeth in just minutes…..

How does tooth whitening work?

Teeth have been shown to whiten when exposed to a peroxide like solution.  How much teeth whiten depends on three things:

1. The concentration of the peroxide in the whitening solution
2. The time the whitening solution stays on the teeth
3. The color of the teeth before the whitening started Read the rest of this entry »