Hydrogen peroxide and carbamide peroxide are the two most common active ingredients in professional and over-the-counter whitening products. This ingredient removes stains chemically by releasing oxygen into the surface of your tooth enamel. Oxygen molecules break down long-strand color molecules, making your enamel look brighter. Different enamel absorbs oxygen differently, so results will always differ from patient to patient. Additionally, oxygen won’t infiltrate the tooth farther than the enamel, so discolorations that come from inside the tooth won’t be affected.
Cosmetic bonding, usually just called “bonding,” uses composite resin, the same material used to fill in cavities, is the most conservative teeth whitening alternative, because it does not require the removal of any tooth enamel. It’s also your most affordable option. This procedure involves your dentist applying thin layers of resin to the surface of the tooth, then using special tools to shape and polish the resin so it looks like healthy, natural tooth structure.
Dental veneers rely on thin sleeves of dental porcelain to completely mask severe stains and other cosmetic flaws. Porcelain veneers are designed to keep your smile looking fabulous for ten years or more, but they have a significantly higher up front cost than teeth whitening methods. In addition, the veneer placement procedure requires the removal of a small amount of tooth enamel, which cannot be reversed down the line.
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