Bleaching Agents For Teeth Whitening

Published:August 2nd, 2010

Hydrogen peroxide is a colourless liquid that acts as a strong oxidizing agent and when diluted with water as a weak acid. Hydrogen peroxide has both home and medical uses. For household use it is available as a 3% water solution. It works as a mild bleaching agent or as an antiseptic. In the home it can be used as a disinfectant. You can even add it to plant water to provide extra oxygen.

Medical uses include cures for the common cold or skin cancer. The 3% solution can be used for mosquito and insect bites, or pimples. In hospitals hydrogen peroxide is used as a sterilizer. Hydrogen peroxide is a water molecule containing one extra oxygen molecule. The presence of oxygen can kill some bacteria and germs. For example, if you soak a toothbrush in hydrogen peroxide, you will eliminate germs.

Hydrogen peroxide is one of the oxidizing agents used for teeth whitening. It acts by penetrating pores in the enamel of the teeth and oxidizes stains. Another bleaching agent is carbamide peroxide.

Carbamide peroxide is hydrogen peroxide compounded with urea. This chemical can irritate the skin or eyes, it can cause burns as it is corrosive. However, in concentrations lower than 10% it is not harmful, and this concentration is the equivalent of 3% hydrogen peroxide.

When carbamide peroxide breaks down in the mouth it forms hydrogen peroxide. Laser bleaching involves light energy that can accelerate the bleaching action of the peroxide. The bleaching agents used for teeth whitening have low concentration so as to avoid burns of tissues.

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