The procedure for bleaching any coloration that occurs on the dental enamel and dentine with methods and materials containing carbamide peroxide or hydrogen peroxide which can exclusively be used by dentists (just in 45 minutes in the clinic). Porcelain laminates are successfully applied in the case of a change in the color of teeth as a result of tetracycline coloration, impact or a root canal treatment and congenital or subsequent defects. Very successful results are also obtained in those patients who have gaps between their teeth, which we call diastema.