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2. These Natural Toothpastes Freshen Breathe and Are Dentist ...

   www.aol.com/lifestyle/natural-toothpastes...

   “The star of the show is nano-hydroxyapatite, which replaces fluoride and acts as a naturally occurring substance that is effective in preventing tooth decay,” she says. User review: “This ...

3. Hydroxyapatite - Wikipedia

   en.wikipedia.org/wiki/Hydroxyapatite

   In various studies the use of nano hydroxyapatite in toothpaste showed positive results in aiding the remineralisation of dental enamel. [32] In addition to remineralisation, in vitro studies have shown that toothpastes containing nano-hydroxyapatite have the potential to reduce biofilm formation on both tooth enamel and resin-based composite ...

4. Topical fluoride - Wikipedia

   en.wikipedia.org/wiki/Topical_fluoride

   Fluoride has a high tendency to react with the calcium hydroxyapatite Ca10(PO4)6(OH)2 in tooth enamel due to its high affinity to metals. [8] [10] It subsequently replaces the hydroxide group in hydroxyapatite to precipitate calcium fluorapatite Ca5(PO4)3)F. [8] These fluorapatite precipitations scavenge excess phosphate and calcium in the saliva to form a supersaturated solution for ...

5. Remineralisation of teeth - Wikipedia

   en.wikipedia.org/wiki/Remineralisation_of_teeth

   When fluoride ions are present in plaque fluid along with dissolved hydroxyapatite, and the pH is higher than 4.5, [16] a fluorapatite-like remineralised veneer is formed over the remaining surface of the enamel; this veneer is much more acid-resistant than the original hydroxyapatite, and is formed more quickly than ordinary remineralised ...

6. Toothpaste - Wikipedia

   en.wikipedia.org/wiki/Toothpaste

   In 1980, the Japanese company, Sangi Co., Ltd., launched APADENT, the world's first remineralizing toothpaste to use a nano-form of hydroxyapatite, the main component of tooth enamel, rather than fluoride, to remineralize areas of mineral loss below the surface of tooth enamel (incipient caries lesions).

7. Experts question benefits of fluoride-free toothpaste - AOL

   www.aol.com/news/experts-benefits-fluoride-free...

   Dental health experts worry that more people are using toothpaste that skips the most important ingredient — fluoride — and leaves them at a greater risk of cavities. Experts question benefits ...