DO WHITENING STRIPS FROM THE GROCERY STORE WORK?
Teeth whitening strips contain peroxide or bleach. Thus, they work to whiten your teeth the same way bleach works to whiten your clothes or your hair. The peroxide bleaches color from your teeth in order to restore their natural, white color.
Most whitening strips are made out of polyethylene, which is a thin, elastic type of plastic. The plastic is coated with peroxide and certain types of strips contain more than others. You 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 discoloration from the surface of your teeth. Some strips need to be removed after a certain period of time, while others do not. Whitening strips work better for younger people who’s dentin, or substructure of the tooth under the enamel, has not darkened.
It might take two or three months to notice whiter teeth with over-the-counter products, whereas when we use products that can only be purchased in a dental office, those are going to work within three or four days to a week or so. We think any over-the-counter product can be harmful, because it can be easily misused or overused. ALWAYS follow the directions on the package.
Whitening strips CAN work, but ask your dentist if they will work for YOU!