At Quince Orchard Dental Care teeth whitening is performed by a highly trained dental practitioner (a dentist or an authorized dental assistant). Our In-office bleaching provides the quickest way to whiten teeth. Proper isolation of the soft tissue is necessary prior to the bleaching in order to protect it. With our in-office bleaching, the whitening gel is applied to the teeth in 15 minute increments. Results are seen in within 60-minutes. But to achieve dramatic results, several appointments are usually needed.