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  2. 60 Anniversary Quotes That Celebrate Love - AOL

    www.aol.com/lifestyle/60-anniversary-quotes...

    Whether you've been married for a year or are celebrating 30, these anniversary quotes are perfect for sharing on Instagram or in a card to say how you feel.

  3. Tooth enamel - Wikipedia

    en.wikipedia.org/wiki/Tooth_enamel

    The enamel on primary teeth has a more opaque crystalline form and thus appears whiter than on permanent teeth. The large amount of mineral in enamel accounts not only for its strength but also for its brittleness. [6] Tooth enamel ranks 5 on Mohs hardness scale (between steel and titanium) and has a Young's modulus of 83 GPa. [4]

  4. Cementoenamel junction - Wikipedia

    en.wikipedia.org/wiki/Cementoenamel_junction

    In about 60–65% of teeth, the cementum overlaps the enamel at the CEJ, while in about 30% of teeth, the cementum and enamel abut each other with no overlap. In only 5–10% of teeth, there is a space between the enamel and the cementum at which the underlying dentin is exposed. [3]

  5. 60 Things Everyone Should Do Before They’re 60 - AOL

    www.aol.com/lifestyle/60-things-everyone-60...

    As you get closer to 60, you may find yourself with way more stuff than what you need. All of those years of accumulation can leave you feeling overwhelmed. If you don't periodically purge, you ...

  6. Cosmetic dentistry - Wikipedia

    en.wikipedia.org/wiki/Cosmetic_dentistry

    Whitening, or "tooth bleaching", is the most common cosmetic dental procedure.Whitening is a safe process that is effective for most patients. Multiple whitening options are available, including over the counter products such as Crest Whitestrips, as well as dentist-supervised methods such as in-office treatments or at-home treatments involving trays with a peroxide gel.

  7. What the Grateful Dead can teach CEOs about succession planning

    www.aol.com/finance/grateful-dead-teach-ceos...

    As the Grateful Dead’s 60-year anniversary comes up in 2025—coinciding with Dead & Co hitting its 10-year mark—it’s clear that both bands play a unique role in our country’s musical history.

  8. Perikyma - Wikipedia

    en.wikipedia.org/wiki/Perikyma

    Thus, the count of perikymata may be used to assess how long a tooth crown took to form. They may disappear as the enamel wears over time after the tooth erupts. Perikymata are the expression of striae of Retzius at the surface of enamel. They can be found on all teeth, but are usually the easiest to notice on anterior teeth (incisors and canines).

  9. Oral hygiene - Wikipedia

    en.wikipedia.org/wiki/Oral_hygiene

    A 1930s poster from the Work Projects Administration promoting oral hygiene. Tooth decay is the most common global disease. [14] Over 80% of cavities occur inside fissures in teeth where brushing cannot reach food left trapped after eating and saliva and fluoride have no access to neutralize acid and remineralize demineralized teeth, unlike easy-to-clean parts of the tooth, where fewer ...