Everyone knows that with age, to preserve the natural whiteness of teeth is not easy, but from the point of view of dentists, it is not possible at all. But even with the utmost hygiene of the oral cavity, a noticeable unaesthetic plaque forms on the teeth. And to remove it it becomes possible only with the help of bleaching. However, such procedures are very often not recommended. After all, frequent bleaching destroys the enamel necessary to protect our teeth from external influences. In addition, there are people who, in principle, do not tolerate this operation. And for some, the deterrent is the need to almost completely abandon coffee, wine and other tinting products.