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Elephant toothpaste reaction Two people watching the reaction of Elephant's toothpaste. Elephant's toothpaste is a foamy substance caused by the quick decomposition of hydrogen peroxide (H 2 O 2) using potassium iodide (KI) or yeast and warm water as a catalyst. [1] How rapidly the reaction proceeds will depend on the concentration of hydrogen ...
The agents most commonly used to intrinsically change the color of teeth are hydrogen peroxide and carbamide peroxide. Oxygen radicals from the peroxide in the whitening agents contact the stains in the interprismatic spaces within the enamel layer. When this occurs, stains will be bleached and the teeth now appear lighter in color.
Many toothpastes make whitening claims. Abrasion is the principal way that toothpaste removes stains, and toothpastes that are not marketed as whitening can still remove stains by abrasion. [72] Some of these toothpastes contain peroxide, the same ingredient found in tooth bleaching gels.
The mineral ions introduced during remineralisation restore the structure of the hydroxyapatite crystals. [22] If fluoride ions are present during the remineralisation, through water fluoridation or the use of fluoride-containing toothpaste , the stronger and more acid-resistant fluorapatite crystals are formed instead of the hydroxyapatite ...
Research has found that adding fluoride to water reduces the amount of tooth decay in young kids by 35%. Can fluoride be harmful? Fluoride is beneficial, say experts.
However, there are several abiotic processes that form hydrated silicas, such as precipitating out of solution, forming a diagenetic alteration product, or replacing pre-existing minerals in sedimentary rocks. [6] In its pure form, as manufactured for toothpaste, it is an odorless, tasteless, white, gelatinous substance, which is chemically inert.
An inspection of a Tom's of Maine manufacturing facility found that the brand's toothpaste was produced with water containing bacteria, and a "black mold-like substance" was discovered at the ...
Stannous fluoride was once used under the trade name Fluoristan in the original formulation of the toothpaste brand Crest, though it was later replaced with sodium monofluorophosphate under the trade name Fluoristat. Stabilised stannous fluoride is now the active ingredient in Crest/Oral B Pro-Health brand toothpaste. Although concerns have ...