First of all, what is teeth bleaching?
Teeth Bleaching can be defined as "A cosmetic dental procedure that whitens the teeth using a bleaching solution.
American Dental Association
The difference between teeth whitening products is basically whether they are using bleaching agents, that work on and deep into the *natural tooth enamel OR just at surface level, using physical or chemical agents like sodium bicarbonate (baking soda) found in whitening tooth pastes.
*IMPORTANT: Natural tooth enamel, not dental work like veneers, bonding, dentures etc.
In the past, the bleaching process would be basically as follows. Upon a dental visit a mold impression is made of your teeth, where it is then sent off to a dental lab. The dental lab creates, what is called a tray, which is a closely fitting mouth tray custom to your teeth. Then, over several subsequent visits (three-four depending on the strength of the bleaching solution), you would sit for 1-2 hours with your trays in your mouth. Gradually, over the visits, your teeth whiten.
Now your dentist will custom fit your teeth with trays through the dental lab, but send you home with the tray and peroxide solution to wear in the comfort of your own home. Most often during your sleep. A popular example of a professional in office teeth bleaching system is brand name "Zoom! Weekender, Night White" is probably the most popular using the equivalent of 6%, 10%, and 22% strength carbamide peroxide with hydrogen peroxide in a patent pending gel formula that is said to whiten your teeth up to six shades in three nights. All formulations and materials are dispensed by your dentist.
An "In Home" Alternative That CAN Deliver Excellent Results...
If price is a concern (and for many of us it
is), an alternative to the high cost system via your dentist (said to
be in the $ 500.00 range) is choosing one of the growing number of
professional dental labs that now deal direct to the public. If your
teeth are healthy and don't have extensive dental work, you are
probably a good candidate.
Please proceed with caution though.
The greatest bleaching system available is performed "in office" by your dentist and can not be replicated at home because it involves specialty dental expertise, materials and lighting. It is referred to as laser teeth whitening. Basically this process involves a very high concentration of peroxide based gel applied to your teeth and a special type of light, that is then directed on the teeth, activating the special bleaching properties.
One of the most popular systems getting a lot of attention is the " Zoom! In Office Whitening System ". According to its makers, Discus Dental, in just over an hour teeth will be on average 6-10 shades whiter. That's pretty impressive.
A limitation to this procedure is, of course, the price. Approximately $1000 - $1500.
Last word on teeth bleaching...
The best "bang for your buck" system available MAY be offered by a
trustworthy dental lab using custom developed trays with high
concentration carbamide peroxide (such as 21%). As mentioned, if
you have great oral health, and natural tooth enamel to work with, you
are probably a good candidate. Do your home work! You do
not want to damage the enamel of your teeth with an overly strong
formulation.
A BIG step in the right direction is reviewing this specially formulated system by Dr. Katz (famous Californian dentist for development of extremely effective bad breath formulation called Therabreath).
Dr. Katz has now introduced a teeth whitening system using tray and bleaching gel called TheraBrite.
Some of the great points in favor of trying this "in home" teeth
bleaching system:
Back To Teeth Whitening Options From "In Office" Teeth Bleaching
Return To Smart Beauty And Makeup Tips Home Page From Best Teeth Whitening "At Home"

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