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Teeth whitening is a gentler and less invasive method compared to other restorations (fillings, veneers, crowns, etc.). Perforating tooth sensitivity may occur during the procedure. Sealed teeth are more likely to develop sensitivity during professional whitening than intact teeth. Home whitening with graves is associated with lower tooth sensitivity. Activation of the UV light of the whitening gel does not improve the result. After high-concentration whitening procedures, the enamel temporarily becomes softer, so do not brush your teeth immediately after whitening procedures. It should be remembered that professional bleaching does not fade existing old and repainted restorations (seals, crowns).

Types of bleaching: mechanical decolorization and chemical degradation of chromogens (dyes) What substances are used: Hydrogen and urea peroxides Types of dyes: Large organic dyes Dyes with metal particles Bleaching mechanism: Hydrogen peroxide breaks the chemical bonds between dye molecules. As a result, the dye molecules remain lighter. Dyes with metallic components are very difficult to fade, so in these cases mechanical masking of the paint with restorations (seals, veneers, crowns) is recommended.

There are two types of tooth discoloration: Internal tooth repainting and external tooth repainting; Internal tooth coating is suitable in the following cases; genetic certainty; enamel erosion / wear; systemic use of antibiotics; fluorosis; amalgam or "silver" seals; old "white" seals; lifeless tooth. It will help to repaint the external tooth in such cases smoking; food (red wine, beets, coffee); medicines (iron-containing preparations). It should be understood that there is an appropriate treatment for each type of repainting. Some will be helped by external teeth whitening, others by internal teeth whitening. There will also be cases when tooth color