Tooth whitening is the process by which the color of natural teeth is made whiter by the use of whitening products. Tooth lightening by gels is done by applying a carbamide peroxide gel or paste to the teeth; this gel is known as tooth-whitening gel.

Small in size and flexible, teeth whitening strips are coated with whitening bleach on one side. To use them, you place a strip on the upper teeth and another strip on the lower strip and leave them on for about half an hour. You apply the strips twice a day, ideally in the mornings and nights.

Tooth whitening gels are of different types with different concentration and constituent chemicals. Therefore there are different types of tooth whitening gel in the market. All of them contain carbon amide peroxide or hydrogen peroxide as the main chemical agent present in the gel. The carbon amide peroxide usually breaks down to give hydrogen peroxide as the main chemical agent and urea. So hydrogen peroxide is the chemical agent that actually brings about the tooth whitening process.

Children who are above two years of age can also use tooth-whitening gels. Since these gels contain no fluoride, the possibility of toxicity due to the swallowing of the gel is ruled out. Tooth-whitening gels function on the whitening effects of carbamide peroxide. This provides the vitamins C and E, and these ingredients stimulate the production of healthy mouth tissues and fight the germs that cause bad breath, without the aid of alcohol or other harmful ingredients.

Whitening teeth with the use of gels is the most popular cosmetic dental procedure because it can significantly improve the appearance of the teeth at much less cost and without the inconvenience of other techniques. This is also the reason why a good majority of dentists use tooth-whitening gels.

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