Opalescence gels contain an active whitening ingredient (either carbamide peroxide or hydrogen peroxide) that penetrates your enamel to get to discoloured molecules. Oxygen molecules from the whitening agents react with the discoloured molecules in your teeth, breaking the bonds that hold them together.
The procedure is simple and consists of 2 weeks of home bleaching followed by a one hour session in the surgery.
Results last indefinitely on the provisor you wear the trays 6 nights a year after your treatment. It is also important to maintain good oral hygiene, and see your hygienist on a regular basis.
Step 1: A preliminary visit to the dentist to have custom-made trays for you to apply the whitening gel at home. The trays are made from an impression of your teeth and whilst being able to accommodate the bleaching gel, will precisely fit around your teeth.
Step 2: A carbamide peroxide gel is given to you to apply at home. Carbamide peroxide is less dangerous than hydrogen peroxide but it turns into hydrogen peroxide slowly when applied to your teeth. Once at home – on a daily basis – you will inject a small amount of the tooth bleaching gel into the tray. You then place the tray over your teeth, and wear it for a few hours. You can wear the tray anywhere, but most people choose to wear it while they are sleeping. Results can be seen after the first night, but maximum whiteness is usually achieved when the tooth whitening process is continued for 10 to 14 nights. This stage prepares your teeth for the deep bleaching on day 15 at the dentist’s.
Step 3: On day 15, your visit to the dentist would involve the deep bleaching treatment. Your dentist will cover the soft tissues carefully leaving your only teeth exposed. A concentrated hydrogen peroxide gel will be evenly applied to your teeth and a special Enlighten light is shone onto your teeth for around 20 minutes which can be repeated at three intervals.