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2. Teeth whitening: What is it, how to do it safely and how to ...

   www.aol.com/lifestyle/teeth-whitening-100042380.html

   Natural teeth whitening options Baking soda. Mixing baking soda with water or hydrogen peroxide can help remove stains from your teeth. Mackie advises that this mixture should not replace your ...

3. Tooth whitening - Wikipedia

   en.wikipedia.org/wiki/Tooth_whitening

   The nicotine and tar in tobacco, combined with oxygen, turns yellow and over time will absorb into the pores of enamel and stain the teeth yellow. The dark brown to black stains along the gum line of the teeth are the result of the porous nature of calculus immediately picking up the stains from nicotine and tar. Betel chewing. [12] Betel ...

4. These Natural Toothpastes Freshen Breathe and Are Dentist ...

   www.aol.com/lifestyle/natural-toothpastes...

   The best natural toothpastes feature a variety of ingredients to clean teeth and freshen breath. Dentists recommend the best ones with and without fluoride. ... “Baking soda can help remove the ...

5. Are Whitening Strips Bad for Your Teeth? Dentists Explain - AOL

   www.aol.com/whitening-strips-bad-teeth-dentists...

   Older folks’ teeth have had a longer period of time to absorb stains, making them more difficult to remove. In this case, he advises consulting a dentist and having the stain removal done ...

6. Toothpaste - Wikipedia

   en.wikipedia.org/wiki/Toothpaste

   Whitening toothpaste cannot alter the natural color of teeth or reverse discoloration by penetrating surface stains or decay. To remove surface stains, whitening toothpaste may include abrasives to gently polish the teeth or additives such as sodium tripolyphosphate to break down or dissolve stains. When used twice a day, whitening toothpaste ...

7. Hydrated silica - Wikipedia

   en.wikipedia.org/wiki/Hydrated_silica

   Diatomaceous earth, originally mined as "tooth powder" is a naturally occurring hydrated silica. As a fine gel abrasive, frequently combined with softer calcium carbonate (from chalk) it helps to remove plaque. Milled to a slightly larger size, the grains are more aggressive and are used in tooth bleaching formulations. [4]