Patients are able to use custom made trays from their dental practitioners where they insert a peroxide substance
. Patients then bring them home to wear, usually twice daily for about two weeks. When one gets an over the counter kit, they have to follow 3 basic and easy approaches, which they have to do daily for two weeks straight. In making mouth shields, patients must boil and mold a plastic material into a tray and then they apply peroxide gel into it. One applies peroxide pre loaded whitening strips easily on his teeth.The people from the American Dental Association encourage patients to get the opinion of a dentist first so that they will now which treatment is the most appropriate. Bleaching is not something that will work for all kinds of teeth, states the group. A case in point, yellowish teeth will possibly bleach well, but grayish teeth will not be that good. Results somewhere in between will likely be what brownish teeth will come to.