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

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

    Certified non-toxic, vegan-friendly, and even microbiome-safe, users say the strips aren’t painful on the teeth or gums. But better still, they work fast: Apply for 30 minutes once a day, every ...

  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]

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

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

    Teeth whitening strips are easy-to-use, peel-and-stick strips that you wear on your teeth for 15 to 30 minutes each day. "Most kits come with a 30-day supply and are relatively easy to use," says ...

  5. Tooth discoloration - Wikipedia

    en.wikipedia.org/wiki/Tooth_discoloration

    The enamel is fragile, the teeth appear yellow or brown, and surface stains build up more readily. [1] Dentinogenesis imperfecta is a defect of dentin formation, and the teeth may be discolored yellow-brown, deep amber or blue-grey with increased translucency. [1] Dentinal dysplasia is another disorder of dentin.

  6. Fluoride varnish - Wikipedia

    en.wikipedia.org/wiki/Fluoride_varnish

    Fluoride varnish is widely used in the United Kingdom, following guidelines from multiple sources backing its efficacy. Public Health England, a UK government organisation sponsored by the Department of Health, released guidance in 2014 recommending fluoride varnish application at least twice yearly for children and young adults. [13]

  7. "Better than Crest Whitestrips" — This teeth whitening pen is ...

    www.aol.com/lifestyle/better-than-crest-white...

    It requires little to no work besides remembering to apply it once a day for 30 to 60 minutes. People with sensitive gums or teeth don't have to worry about irritation since it's a gentle formulation.