Treatments for both power and laser bleaching can take as little as 45 minutes, but usually last somewhere between one and two hours. Tooth sensitivity often occurs during early stages of the bleaching treatment, Quite often repeated treatments are recommended over days and weeks to get the desired smile.
And further more, its gentle action means that you can stop treatment at just the shade of white you want. However, laser whitening is faster for the patient (less time in the dental chair), with less chance of side effects such as sunburn or post treatment tooth sensitivity. All dental treatment carries a risk of side-effects, which are the unwanted, but mostly temporary effects of a successful treatment.
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