Whitening Tooth Bleaching
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What is the physiology/biology behind tooth pain/sensitivity when whitening/bleaching?
Usually, your pain mechanism is your body's way of telling you that's something's wrong. Therefore, what do whitening products do to your teeth that make them hurt? Is it causing root resorption? (Despite the potassium nitrate in the whitening gel, my teeth still hurt). Thanks!
Carbamide Peroxide the active product is slowly broken down to Hydrogen Peroxide which whitens the teeth. The 16% gel whitens more slowly but causes less tooth sensitivity. The 22% gel whitens quickly but can cause temporary sensitivity to temperatures. Both the 16% and 22% gels need to be worn for about 10-14 days to achieve maximum whiteness. Hydrogen peroxide penetrates the enamel prisms of the tooth an removes biofilm this "opening of the pores" next to the pulp of the tooth causes an increase in sensitivity althoughth here has never been any long term harm to the tooth or pulp(nerve)
The ultimate whiteness will be determined by the length of time the teeth are exposed to the whitening gel and the mineral composition of the teeth. Teeth whitening is kind of like a reverse suntan. Some people get great results in only one or two days while others need more treatment time.
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