We have in-office and at-home tooth whitening available. Tooth whitening is a procedure that brightens teeth that are discolored, stained or have darkened due to injury. Chair side bleaching takes from 30 minutes to an hour per visit. A chemical solution is applied to the teeth. A special light may be used at intervals to help activate the bleaching agents. Two or more sessions, one week apart may be required. With in-home bleaching your dentist makes a custom fitted tray that holds the bleaching gel. The tray is worn during the day or at night for about two weeks. The length of time may vary depending on the patient's teeth or the doctor's recommendations. Periodic touch-ups may be needed. It is not uncommon to have tooth sensitivity during either chair-side or at-home bleaching. Professional bleaching is about 80% more effective than over-the-counter methods.