Bright smile and healthy looking teeth are still increasingly desired aspects of personal culture. In Western European countries, where the demand for tooth whitening agents has grown enormously in recent years, bright smile has become self-understood and has become a cause of success in personal life and at work.
About 30 years ago, a new method of tooth whitening using the active ingredient carbamide peroxide was discovered. This substance penetrates into the tooth structure and discolors deposited pigments. Tooth enamel remains intact. The concentration of carbamide peroxide varies with the used method. In the case of home whitening a concentration of 10% is used, however, concentration increases in in-office whitening where the results must be achieved in the shortest possible time. In dental offices the concentration of carbamide peroxide commonly used for teeth whitening is 16, 22, and 30%.
In-office whitening. Some offices offer faster methods of whitening, where concentrated peroxide (up to 35%) is applied on the tooth and then activated with a plasma lamp or laser.