Add Yahoo as a preferred source to see more of our stories on Google. How does purple toothpaste work? It uses color theory’s principle of complementary colors. Complementary colors are shades that ...

If you’ve been brushing your teeth as long as you can remember, chances are you haven’t taken much time to reflect on your form, and the oral health habit is pretty much second nature. If too much of ...

Dental hygiene is important — as is taking pride in your "pearly whites." But keeping your teeth bright and white can be a challenge, with various factors causing discoloration. Dr. Ronald Santana, ...

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