Some
offices offer a quick start bleaching procedure
in which a concentrated peroxide gel is placed
on the teeth and allowed to remain in place
while "activated" with a light source. In-office
whitening is effective, but can be time consuming.
Sometimes the result the patient expects cannot
be achieved in only
one session and more procedures are required. Prior
to the introduction of at-home tray-bleaching
techniques, this was the only form of bleaching
offered to the public.
Take-home
bleaching is available only through your dentist.
The bleaching material can only be bought with
a
prescription
and must be applied using the custom trays that
the dentist or his hygienist makes for you. The
agent is carbamide peroxide and it comes in concentrations
between 10% to 35% with 15% being the most popular
for professional take-home bleaching.
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Today,
many tooth manufacturers sell whitening
products, whitening strips and special
tooth paste. No matter the choice, those
options are allways less effective. It
is our opinion that dental bleaching must
be done under professional supervision.
Whitening toothpaste are over-the-counter
preparations that have a low concentration
of carbamide
peroxide.
These toothpastes will work to brighten your
teeth if you are a very good brusher.
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Whitening
strips are designed so that they will adhere
to the teeth. They are applied and worn
for several
hours like the trays described above. The carbamide
concentration in home bleaching strips is only
7% to 14% while professionally prescribed take-home
bleaches come in either 22% or 32%. Thus it takes
a lot longer to get the same results using over
the counter bleaching strips than it does using
professionally prescribed bleaching solutions in
trays.