Bleaching: Most of the known and best teeth whitening products can be applied for up to several hours at a time. The treatment can be done even while you’re sleeping. Ideally, a good result can be attained in as little as one week
Bleaching. This is most common form of teeth whitening procedure. Your dentist will advice you if this is the best teeth whitening treatment suitable for you.
Bleaching is done by placing a gel or rubber to shield the soft tissue of your gums. Then, the whitening product will be applied on your teeth by using a special tray which shapes into your mouth like a gum shell.
The teeth whitening product usually contains carbamide peroxide and hydrogen peroxide as the ‘active ingredients’. When these ingredients break down, the oxygen enters the enamel of your teeth thus, making the color lighter. The entire treatment can be completed in three to four weeks time.
For those who wish to undergo to this treatment, you will need at least three visits to the dentist. On your first visit, the dentist will create a mouth-guard and take a caricature or impressions of it. Once the treatment has started, it is recommended that you continue it at home. You have to regularly apply the teeth whitening product over four weeks, for at least 30 minutes at a time.
bleaching at wikipedia