Supervised Teeth Whitening Products, What are differences?
Strength of bleaching agent – Over-the-counter home use products and dentist-supervised at-home products usually contain a lower strength-bleaching agent from 10% carbamide peroxide, which is equivalent to about 3% hydrogen peroxide, up to 22% carbamide peroxide. In-office, professionally applied tooth whitening products contain hydrogen peroxide in concentrations ranging from 15% to 43%. Mouthpiece trays – With dentist-supervised at-home bleaching products, your dentist will take an impression of your teeth and make a mouthpiece tray that is customized to exactly fit your teeth. This customization allows for maximum contact between the whitening gel, which is applied to the mouthpiece tray, and the teeth. A custom-made tray also minimizes the gel’s contact with gum tissue. Over-the-counter whitening products also contain a mouthpiece tray, but the “one-size-fits-all” approach means that the fit will not be exact. Ill-fitting trays can irritate the gum and soft tissue by allowing more
