Oral B 3D White Luxe Advanced Seal 14 Teeth Whitening TreatmentsGeneral Information Oral B 3D White Luxe Advance Seal Whitestrips, Enamel Safe 14 Teeth Whitening Treatments Oral B 3DWhite Whitestrips use the same enamel safe whitening ingredient used by dentist. They are thin, flexible strips that are coated with a tooth whitening gel containing peroxide. Once you unwrap them and place them across both upper and lower sets of teeth, they stay on until it's time to remove them. The recommended use is to keep on the