Teeth Whitening:

Carbamide peroxide, used in many bleaching products, breaks down into hydrogen peroxide and urea, with hydrogen peroxide being the active bleaching agent. A bleaching product containing 10 percent carbamide peroxide yields approximately 3.5 percent hydrogen peroxide. The most commonly observed side effects with these peroxide-based bleaching agents are tooth sensitivity and occasional irritation of soft tissues in the mouth, particularly the gums. Tooth sensitivity often occurs during early stages of bleaching treatment. Tissue irritation may result from an ill-fitting tray used to contain bleaching product. Both tooth sensitivity and tissue irritation are usually temporary and stop after the treatment. Of course, I prefer the professional whitening systems because of the custom trays that we make in our office. The results seem more precise and the gel