Is Teeth Whitening Safe?
The answer is yes and no – yes because teeth whitening under a dentist’s supervision is safe, but over-the-counter whiteners have a potential for misuse that can harm your teeth.
Peroxide – The Ingredient That Whitens
Over the years, research on the effects of teeth whitening shows that low concentrations of peroxide are safe to use as directed by your dentist. The most common bleaching concentrations are 10 percent carbamide peroxide for at-home use and 35 percent hydrogen peroxide used by your dentist.
The difference between the two is that carbamide peroxide can remain active for up to 10 hours with a low concentration that doesn’t damage tooth enamel. Hydrogen peroxide, on the ...