What happens when doing a teeth bleaching?
The bleaching process is made possible by the ability of carbamide peroxide and hydrogen peroxide to pass through enamel and dentin and to penetrate these layers of dental tissue.
Peroxides decompose into oxygen ions that creep through the prisms of the enamel, the hydroxyapatite crystals, divide the molecules of coloring substances and thus discolour them.
The structure of the tooth is not affected; the tooth is simply whitened. The active whitening principles break down into tiny molecules and migrate in all directions so that the tooth is fully whitened. Numerous studies have demonstrated the effectiveness of peroxides for tooth whitening.
Plaster fillings, composite fillings and ceramic prostheses are not affected by the active ingredients of the whitening product.