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Procedures
There are two
types of bleaching procedures. Bleaching may be done
completely in the dental office (known as chairside bleaching)
or a system may be dispensed by the dentist for the patient to
use at home (nightguard bleaching).
The procedure that is done in the dental office takes from 30
minutes to one hour per visit. It is not uncommon for the
teeth to become slightly sensitive following bleaching
treatments.
To protect the mouth, a gel-like substance is applied to the
gums and a rubber "shield" is placed around the necks of the
teeth. A chemical solution (the oxidizing agent) is then
"painted" on the teeth. A special light may be used at
five-minute intervals to help activate the agent.
With nightguard bleaching, an impression for a model of your
teeth is made, and a custom-fitted mouthguard is made. A
bleaching agent in the form of a bleaching gel is then
prescribed. The gel is placed in a mouthguard and worn up to
two hours daily or at night for about two weeks. The amount of
time the nightguard is worn and the duration may vary
according to your needs and your dentist's recommendations.
Some people with certain dental conditions may not be good
candidates for this type of bleaching. People with gum
recession, for example, may have exposed root surfaces which
are highly sensitive that could be further irritated by the
ingredients in whiteners. In addition, these products are not
recommended for habitual tobacco and alcohol users.
Advantages of Bleaching
The advantages of tooth bleaching over other procedures to
whiten teeth are that it doesn't require any tooth structure
to be removed and it is the most economical. Even teeth that
have had root canals can be easily whitened. 00
Results
To get the best results, teeth may be bleached a shade lighter
than desired since they will tend to darken slightly with
time. Anywhere from two to ten visits may be required to
complete the process of chairside bleaching. Nightguard
bleaching is normally intended to be completed in two weeks.
Most bleaching lasts one to three years, although in some
situations it may be longer.
Your dentist will monitor the entire process of nightguard
bleaching to assure its effectiveness and safety.
Over-the-counter products which are self-administered are not
recommended. Although they may appear to cost less, bleaching
treatments should only be done under the supervision of a
dentist following a proper examination and diagnosis of the
discolored teeth. Whiteners with the ADA Seal of Acceptance
have been proven to be safe and effective.
With some chair-side techniques, you should avoid
stain-causing beverages (such as tea and coffee) for several
days after the procedure, because your teeth may more readily
absorb stains at that time. Twice-daily brushing, daily
flossing and regular professional cleanings -- along with
occasional touch-up treatments -- will keep your teeth white
so that you can once again feel confident in exercising your
smile. |