Do over-the-counter bleaching products work?

There is some evidence that over-the-counter bleaching products do whiten teeth, however these products are not used under the supervision of your dentist and there may be potential problems which need attention prior to whitening, such as cavity or leaking restoratons in this Way. Also, the trays usually sold with  products do fit as well as those that are custom made by your dentist. As a result, damage to your gums and teeth is possible.