As we get older our teeth become discoloured through smoking, coffee, red wine and many other foods and drinks. Regardless, of how well we brush our teeth loose their whiteness.

Teeth whitening also called Dental bleaching, also known as tooth whitening, is a common procedure in general dentistry but most especially in the field of cosmetic dentistry. A child's baby teeth are generally whiter than the adult teeth that follow. As a person ages the adult teeth often become darker due to changes in the mineral structure of the tooth, as the enamel becomes less porous.