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  2. Remineralisation of teeth - Wikipedia

    en.wikipedia.org/wiki/Remineralisation_of_teeth

    When enough acid is produced so that the pH goes below 5.5, the acid dissolves carbonated hydroxyapatite, the main component of tooth enamel. [7] The plaque can hold the acids in contact with the tooth for up to two hours, before it is neutralized by saliva.

  3. Tooth enamel - Wikipedia

    en.wikipedia.org/wiki/Tooth_enamel

    Consequently, enamel, unlike many other tissues of the body, has no way to regenerate itself. [17] After destruction of enamel from decay or injury, neither the body nor a dentist can restore the enamel tissue. Enamel can be affected further by non-pathologic processes. Enamel is covered by various structures in relation to the development of ...

  4. Should you throw out your black plastic cooking utensils? - AOL

    www.aol.com/lifestyle/black-plastic-spatulas...

    Liu says her advice is the same as it's been: “If you can, reduce your use of plastic. Not just black plastic, but plastic in general, [which] can reduce your exposure to any harmful chemical ...

  5. Tooth decay - Wikipedia

    en.wikipedia.org/wiki/Tooth_decay

    The diameter of the dentinal tubules is largest near the pulp (about 2.5 μm) and smallest (about 900 nm) at the junction of dentin and enamel. [82] The carious process continues through the dentinal tubules, which are responsible for the triangular patterns resulting from the progression of caries deep into the tooth.

  6. A 90-year-old comedian still does gigs and plays golf. She ...

    www.aol.com/90-old-comedian-still-does-114620116...

    D'yan Forest is a working comedian at 90, doing gigs in two languages. She shared some of her tips for staying fit and funny into her 90s. These include having a positive outlook and spending time ...

  7. Human tooth - Wikipedia

    en.wikipedia.org/wiki/Human_tooth

    The diameter of these tubules range from 2.5 μm near the pulp, to 1.2 μm in the midportion, and 900 nm near the dentino-enamel junction. [18] Although they may have tiny side-branches, the tubules do not intersect with each other. Their length is dictated by the radius of the tooth.

  8. Wendy Williams is 'permanently incapacitated' amid dementia ...

    www.aol.com/wendy-williams-permanently...

    Wendy Williams' health has taken a turn for the worse amid her battle with dementia and aphasia. The former "Wendy Williams Show" host, 60, has become "cognitively impaired and permanently ...

  9. Vitreous enamel - Wikipedia

    en.wikipedia.org/wiki/Vitreous_enamel

    Gothic châsse; 1185–1200; champlevé enamel over copper gilded; height: 17.7 cm (7.0 in), width: 17.4 cm (6.9 in), depth: 10.1 cm (4.0 in). Vitreous enamel, also called porcelain enamel, is a material made by fusing powdered glass to a substrate by firing, usually between 750 and 850 °C (1,380 and 1,560 °F).