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Teeth whitening has become the most promoted and mentioned methodology in cosmetic dentistry. In excess of 100 million Americans brighten their teeth using different methods; spending $15 billion in 2010. [85] The US Food and Drug Administration only endorses gels that are under 6% hydrogen peroxide or 16% or less of carbamide peroxide.
It is a white, granular or crystalline solid, highly soluble in water, producing an alkaline solution. TSP is used as a cleaning agent, builder, lubricant, food additive, stain remover, and degreaser. [7] As an item of commerce TSP is often partially hydrated and may range from anhydrous Na 3 PO 4 to the dodecahydrate Na 3 PO 4 ·12H 2 O. Most ...
Water purification combines a number of methods to produce potable or drinking water. Downstream processing refers to purification of chemicals, pharmaceuticals and food ingredients produced by fermentation or synthesized by plant and animal tissues, for example antibiotics, citric acid, vitamin E, and insulin.
Aqueous solutions readily oxidise to form insoluble precipitates of Sn IV, which are ineffective as a dental prophylactic. [22] Studies of the oxidation using Mössbauer spectroscopy on frozen samples suggests that O 2 is the oxidizing species.
The fluoride enhances the strength of teeth by the formation of fluorapatite, a naturally occurring component of tooth enamel. [ 9 ] [ 10 ] [ 11 ] Although sodium fluoride is used to fluoridate water and is the standard by which other water-fluoridation compounds are gauged, hexafluorosilicic acid (H 2 SiF 6 ) and its salt sodium ...
In addition to brushing, cleaning between teeth may help to prevent build-up of plaque bacteria on the teeth. This may be done with dental floss or interdental brushes.. 80% of cavities occur in the grooves, or pits and fissures, of the chewing surfaces of the teeth, [4] however, there is no evidence currently showing that normal at-home flossing reduces the risk of cavities in these areas.
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