Is Tooth Whitening Safe?
Tooth
whitening is safe. Most studies confirm that tooth whitening is safe
and effective. Whitening gels
that contain 10 percent carbamide peroxide (equivalent to 3.6 percent hydrogen
peroxide) have not been shown to cause any damage to the enamel of the tooth.
Higher concentrations of carbamide and hydrogen peroxide available from the
dentist may weaken the enamel, but most of these formulas also contain fluoride
offsetting this potential side-effect. People who use higher concentrations of
whitening agents can also receive
prescription fluoride gels
from their dentist to help further protect their teeth.
If tooth sensitivity or gum irritation occur, it is best to start using the
whitening product
less frequently -- say, every other day instead of every day -- and reduce the
amount of time spent whitening.
Prescription fluoride is also used to treat sensitivity sometimes associated
with tooth whitening. Irritation of
the gums can occur from either the in-office, at-home or over-the-counter
tooth whitening systems. Gum irritation is usually mild
and
reversible, but can be treated with over-the-counter products such as Orajel.
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