per jaw. Tooth whitening can be done by two different methods: 1. The home whitening system, prepared in our office and completed by you at home. 2. An in-office whitening system which is completed in one visit. The in-office tooth whitening system uses a whitening solution that is stronger than the home whitening solution. The teeth to be whitened are isolated and kept dry. The whitening solution is applied to the teeth and is activated by shining a high intensity light source on each tooth. This procedure is repeated three times, and in about one hour the teeth are noticeably whiter. Patients are cautioned against the use of any foods or substances (red wine, coffee, tea, tobacco products, blueberries, etc.) that may cause staining for 48 hours after in-office whitening.