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  2. Tooth whitening - Wikipedia

    en.wikipedia.org/wiki/Tooth_whitening

    Tooth whitening or tooth bleaching is the process of lightening the colour of human teeth. [1] Whitening is often desirable when teeth become yellowed over time for a number of reasons, and can be achieved by changing the intrinsic or extrinsic colour of the tooth enamel . [ 2 ]

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

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

    Crest 3D White Stain Eraser Teeth Whitening Toothpaste. At less than $5 for a two-pack, you're probably already sold on this top-selling whitening toothpaste.

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

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

    What is teeth whitening? "Teeth whitening is the process of bleaching the middle layer of the tooth to make the overall appearance of the tooth whiter," says Naomi Levy Goldman, DMD, Cosmetic ...

  5. The best whitening toothpastes - AOL

    www.aol.com/news/best-whitening-toothpastes...

    Experts explain how whitening toothpaste works to remove stains from teeth, and why it offers limited effectiveness.

  6. Dentin hypersensitivity - Wikipedia

    en.wikipedia.org/wiki/Dentin_hypersensitivity

    Repeated exposures to a low pH cause the mineral content of the teeth on the outer layer of enamel to dissolve therefore leaving the dentine exposed and leading to hypersensitivity. Other causes include dental bleaching, smoking tobacco (which can lead to recession and therefore sensitivity) cracked teeth and abfraction or grinding of teeth ...

  7. Toothpaste - Wikipedia

    en.wikipedia.org/wiki/Toothpaste

    Toothpaste is a paste or gel dentifrice used with a toothbrush to clean and maintain the aesthetics and health of teeth. Toothpaste is used to promote oral hygiene: it is an abrasive that aids in removing dental plaque and food from the teeth, assists in suppressing halitosis, and delivers active ingredients (most commonly fluoride) to help ...

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