There is a stereotype about the dangers of teeth whitening. This is because the compounds that make up some whitening gels have an acidic pH. The Zoom system managed to change this pH to the alkaline side. That is, the damage to the enamel, which causes an acidic environment, was leveled and reduced to zero by changing the pH of the active substance of the gel. In all the years we have been working with this system, no destructive effect from whitening has been observed on the teeth.