Tooth Whitening Can Be A Very Effective Dental Treatment For Lightening The Natural Color Of Your Teeth Without Removing Any Of The Tooth Surfaces.
American Dental Association
Products used during teeth whitening are usually hydrogen peroxide or carbamide peroxide. As the active ingredient brake down, oxygen gets into the enamel of the teeth and their color is made lighter. The whitening effects can last up to three years; however, this will vary from person to person. Teeth whitening is less likely to last as long if you smoke or eat or drink products that can stain your teeth. It is important to be diagnosed by a cosmetic dental care specialist before you start the treatment.
You can help to keep your bright white smile by cutting down on the amount of food and drinks that are likely to stain your teeth. Also, quitting smoking can also help prevent discoloration and staining.