Over 10 million dental patients have had their teeth whitened by using one of the Zoom whitening systems. There are two types of Zoom products, the in-office and at-home whitening system.  The in-office whitening system,  During an in-office Zoom whitening treatment, you can whiten your teeth up to eight shades, and the results will last much longer than over-the-counter products and other professional whitening systems. This is possible, because it’s the work of the latest light-activated whitening technology. With the use of this technology, whitening is less messy and a lot more convenient for the patient and dentist, but more so for the patient.