A tooth color depends on the composition and structure, the thickness of each tissue in which it is established. Yellowing of teeth can be substances that stain the enamel and plaque buildup. One of the most effective natural remedies for teeth whitening is baking soda.
We Put 9 Fast-Acting Teeth Whiteners to the Test—Here's What Happened | When it comes to teeth whitening, we're impatient. Why spend months working toward something you can achieve in a week? Since we're assuming you also crave the sweet taste of instant gratification (and pearly brightness), we tried the strips, pastes, gels, and brushes that promise gleaming white teeth, fast.