Teeth whitening or bleaching procedure, on the contrary to what is commonly known misinformation among people, is not the removal of stains on the teeth, but blanching the main color of the teeth by means of applying a chemical agent. In case it is professionally, and unless unconsciously applied by a dentist, it is a reliable method of treatment. It is the most ideal and preventive treatment for those who have no problems with the shape, size and arrangement of their teeth, but want to have whiter teeth.