As one of the main chemicals in many types of whitening strips, chlorine dioxide is the same as the cleaner used to disinfect swimming pools. That is, it removes plaque and stains from the teeth by dissolving the enamel. Removing tooth enamel removes stains. Nevertheless, it is a dangerous and irreversible process and experts say that with prolonged use, the white strips can cause enamel to wear away, increasing the risk of tooth decay; therefore, you should always ensure that you use whitening strips without chlorine dioxide - charcoal teeth whitening strips are a good choice.

Just because your whitening strips don't contain chlorine dioxide doesn't mean you're exempt from other risks. Many people make the mistake of using whitening strips for longer than directed. All this is done to achieve faster and more dramatic results. However, this can also lead to the risk of wear and tear on tooth enamel and even adjacent gum tissue. If you feel that your teeth become inflamed during the use of whitening patches, the manufacturer recommends that you stop using the patches and visit your dentist.