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How do teeth whitening strips work

07 January 23.

Teeth whitening strips work

Teeth whitening strips have the potential to whiten teeth by bleaching stains with hydrogen peroxide or carbamide peroxide. Carbamide peroxide is a molecule that breaks down into hydrogen peroxide when it comes in contact with water.

The peroxides in the whitening strips penetrate the outer layer of the tooth called enamel and into the deeper layer of dentin, where they bleach the whites. 

Chromogens are pigment molecules found inside and outside teeth that cause staining.

Staining can be divided into two categories: extrinsic and intrinsic.

extrinsic staining

External staining affects the outside of the tooth and is mainly caused by environmental factors such as:


Certain foods and drinks, such as coffee, wine, dark berries


Contact with metals such as iron or copper

Intrinsic staining

Intrinsic staining affects the inside of the tooth. It is caused by:

Age-Related Enamel Erosion



exposure to high levels of fluoride

Dental Developmental Disorders

Teeth whitening strips contain peroxide or bleaching agents. So they can whiten your teeth in the same way that bleach can whiten your clothes or hair. Peroxide bleaches the color of teeth to restore their natural whiteness.

Most whitening strips are made of polyethylene, a thin, stretchy plastic. Plastic is coated with peroxide, and some types of adhesive strips contain more than others. You can apply the strips to your teeth according to the package directions so that the peroxide comes into contact with your enamel. This allows the peroxide to remove stains and discolorations from the surface of the teeth. Some strips need to be removed after a while, while others don't.

How do teeth whitening strips work

Are whitening strips safe to use?

Most whitening strips are safe to use; however, if you use a strip that contains chlorine dioxide, it may damage the enamel on your teeth. Chlorine dioxide is the same acid used to sanitize swimming pools. It whitens teeth by eroding the surface of the enamel. Essentially, if you use this type of whitening strips, you're wearing down the enamel on your teeth and increasing your risk of cavities.

Even if your whitening strips do not contain chlorine dioxide, it is important to follow the directions on the package. Don't rush and use more strips or leave them on for longer than recommended. Doing so can be harmful to tooth enamel. Products that dissolve tooth enamel can also damage gum tissue, so if your gums become irritated after using the product for a few days, you may want to stop using it and see your dentist.

How do teeth whitening strips work

How to use whitening stickers correctly:

Chances are, if you don't use the whitening test strips properly, you won't get the results you expect. Applying whitening strips is not difficult, but missing steps may result in no color change.

Please refer to the directions that came with the strips as different brands may use them differently.

How do teeth whitening strips work

how long it takes to see the results

There are many types of whitening strips on the market, and different brands have different instructions.

Typically, you use the strips twice a day for 2 weeks. You typically leave them on for about 30 minutes at a time.

Teeth whitening can be seen in just a few days and can brighten your teeth a shade or two. Some products may only require you to use once a day, but can provide the same results.

Onuge leading manufacturer of teeth whitening strips in the world.Onuge Personal Care (Guangzhou) Co., Ltd always abides by the corporate spirit of being concentrative, practical, efficient and passionate, and serves every consumer with high-end oral care products and superior tooth whitening strips and other whitening products.

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