The Different Methods of Teeth Whitening That Are Available

Teeth whitening in London is any process that lightens the colour of the teeth, and there are a number of ways in which this can be achieved. Whitening may be accomplished by physically removing a stain or using a chemical reaction to lighten the colour of the tooth. The active ingredient that is used in most tooth whitening products is hydrogen peroxide which can be used as hydrogen peroxide or as carbamide peroxide which breaks down in contact with water and releases hydrogen peroxide.

Stains on teeth are due to compounds called chromogens which either accumulate in the tooth, in which case they are called intrinsic, or on the outside of the tooth – extrinsic. Hydrogen peroxide reacts with these chromogens to cause them to become lighter. 


Teeth whitening in London can be a result of a number of different products, such as using smokers' toothpastes which have much larger amounts of abrasives and detergents than ordinary toothpaste in order to remove chromogens from the surface of the tooth. There are also bleaches which contain sodium hypochlorite and react with chromogens causing them to become lighter, and products that contain both increased bleaching and cleaning compounds.

You can also buy teeth whitening strips for teeth whitening in London. These have been available since the late 1980's and contain a gel of hydrogen peroxide which you can apply to your teeth, one at the top and one at the bottom. Instructions vary, but a typical manufacturer will tell you to apply the strips for half an hour twice a day for two weeks to achieve between one and two shades of whitening.

Another method of teeth whitening is to use rinses containing peroxide. Manufacturers of these usually tell you to rinse twice a day for a minute, and it can take up to three months to see a noticeable improvement.

The quickest way to achieve teeth whitening is in the dentist's chair. This is because the products used contain larger concentrations of peroxide and so a faster reaction is obtained. However, you may consider it is worth it because a noticeable improvement can be made in as little as half an hour.

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