In-office teeth whitening is also called tooth bleaching because it requires the use of a bleaching product. The agent uses an oxidizing process to increase the value shade of your teeth.
This process of showcasing the natural shade of the tooth can be achieved through the removal of surface staining which has been caused by extrinsic factors like smoking, drinking sodas, red wine, coffee, and tea. The build-up of tartar and calculus can also increase the teeth staining which is why dental cleaning is always recommended first. The restoration of natural tooth shade may be achieved through having teeth cleaned in the dental office which is also called polishing and scaling. The tartar and calculus can be removed easily with the help of professional dental cleaning.