The type of laser used will be selected by the dentist. When you discuss each option with your cosmetic dentist, he or she will explain the details of each process. The argon laser is most typically used for laser teeth whitening. The laser activates the chemicals placed on the teeth.
Laser whitening is in the top tier in terms of tooth whitening costs, but this is more than made up for by the convenience and speed at which it can be accomplished.
As with any teeth whitening process, the effects will last based on how you take care of your teeth after optimal color has been reached.
With most laser teeth whitening, your dentist will give you a custom-fit tray to use for color maintenance.