Teeth whitening is a cosmetic procedure by which natural teeth are bleached by means of peroxide bleaching compounds .The oxygen will take out all the colouring pigments existing on the tooth while leaving the enamel and dentine completely intact.

With the oxygen, we will be able to eliminate all those persistent pigments which cannot be removed  in a normal professional cleaning session.

Firstly , a professional cleaning will be necessary in order to take out  all calculus (tartar).

The coloration of teeth is mostly produced by food (coffe, tea , red wine etc )and tobacco consumption.