Bleaching is a procedure that improves the colour of the teeth by whitening them.
Products with hydrogen and carbamide peroxide are used to achieve this effect. Two active substances are employed in different concentrations depending on the technique we want to use and the needs of the patient. The bleaching effect is determined by the oxygen liberation from the hydrogen or carbamide peroxide when this touches teeth. These oxygen molecules disintegrate pigments that cause dyschromia, making them invisible. Bleaching only acts on natural teeth, it is not efficient on prostheses, fillings, or any other restoration material in the oral cavity. Cosmetic solutions for sale (comply with Directive 2011/84/EU) contain a too low dose of active substance to achieve a useful effect.
There are two main professional bleaching techniques of natural teeth:
Gel application by customized masks realized by two printings detected by the dentist. The peculiarity of these masks consists in the presence of reservoirs on the outer surface, that contain bleaching gel. Dentist shows his patient how to apply gel to the masks and how to wear them. Patient will wear these masks from 4 to 8 hours per day, for about two weeks. Modest Result.
Outpatient tooth whitening
The high concentration of active substance needs the application of barriers to isolate and protect soft tissues. Later we proceed with the gel application to the teeth. We use a light source very often to help the gel action. Medium Result.
Recently, to achieve a High Result, it is been developed the “Power Bleaching”, a technique that reunites both techniques. This is how the “Power Bleaching” works. This technique consists in three appointments: