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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

    Several methods exist for whitening teeth at home, ranging from over-the-counter (OTC) products to natural remedies. Here are some of the most popular at-home teeth whitening options. Over-the ...

  3. Dentist-Approved At-Home Teeth Whiteners - AOL

    www.aol.com/dentist-approved-home-teeth...

    Of course, there’s more to a beautiful grin than it being free of stains. Before you start shopping for over-the-counter teeth whitening products, American Dental Association (ADA) spokesperson ...

  4. 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 ...

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

    www.aol.com/lifestyle/teeth-whitening-safely...

    Brighten up your smile in days or weeks with effective at-home teeth whitening options. ... Home & Garden. Medicare. News. Shopping. Main Menu ...

  6. Cetylpyridinium chloride - Wikipedia

    en.wikipedia.org/wiki/Cetylpyridinium_chloride

    Cetylpyridinium chloride is known to cause tooth staining in approximately 3 percent of users. [14] The Crest brand has noted that this staining is actually an indication that the product is working as intended, as the stains are a result of bacteria dying on the teeth. [15]

  7. Tooth discoloration - Wikipedia

    en.wikipedia.org/wiki/Tooth_discoloration

    To prevent future buildup of extrinsic stains, identification of the cause (e.g., smoking) is required. Intrinsic discoloration generally requires one of the many types of tooth bleaching . Alternatively the appearance of the tooth can be hidden with dental restorations (e.g., composite fillings, veneers , crowns).