Feb 04
Many at home dental bleaching products come with a teeth whitening gel that slowly oxidizes and removes stains over a period of about two weeks. These over the counter teeth whitening products are the kits which include those funny-looking trays. The purpose of the tray is to fit tightly over your teeth so that the dental bleaching gel stays where it is supposed to be rather than leaking out onto your gums and other soft tissues in the oral cavity. Because the active ingredients in these dental teeth bleaching gels are designed to remove hardened stains, they tend to cause irritation and serious discomfort when they do not stay where they are supposed to.