Proper hygiene and regular cleaning preserve the teeth and keep them healthy. It often happens that after consuming certain foods and drinks, a pigmentation develops on the teeth. Pigmentation more often happens to people who smoke and to those who drink a lot of coloured rinks, such as coffee. It is normally impossible to remove with a toothbrush, and it appears as a brown stain on the tooth surface. The teeth start changing colour and are full of tartar, especially on the inner side. A dentist can completely remove the tartar and impurities from the teeth by applying mechanical cleaning. Mechanical cleaning purports the removal of tartar and impurities from all teeth surfaces, especially those not easily accessible to the patient. The treatment itself is painless and quick, and is done with different rotating brushes, rubbers etc.