Fading It Out - A Review Literature on Tooth Bleaching

Tooth whitening has become one of the most popular dental procedures among the general public. The public has been influenced by the portrayal of perfect white smiles in the media and come to demand whiter, more perfect smiles and in response many choices for tooth whitening have been made available. Teeth whitening can be accomplished in a variety of ways, each with its unique mechanism of action. The effectiveness of these various procedures is determined by the type of tooth discoloration being addressed. These include homebased products such as toothpastes, gels, and films, as well as in-office based systems where products containing highly concentrated bleaching agents are applied under professional supervision. Tooth whitening is any process that lightens the colour of a tooth. Whitening may be accomplished by physical removal of the stain or a chemical reaction to lighten the tooth colour. Bleaching is defined here as the chemical degradation of the chromogens. New products and techniques that are less invasive to dental tissues are now being used to fulfil rising patient demands for aesthetics.