Fluorinex device claims to protect teeth against cavities for five years

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odontologist @ Feb 3rd 2006 7:51AM

Yellow comes from organic stains accumulating in the teeth and the deposition of dentin into the tooth's pulp chamber as the pulp shrinks with age. Dentin is yellow, so as it thickens, the tooth takes on a yellower hue. The organic stains are from C=C bonds(carbon-carbon double bonds)that have accumulated in the tooth. Bleaching (like Zoom!) can lighten both of the above, ie. breaking the C=C into a single bond. This makes the stain clear so your teeth look white again.

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