Opalescence teeth whitening is a chemical system for bleaching teeth that have been discolored. Unlike other teeth whitening processes, Opalescence uses carbamide peroxide gel instead of the more traditional hydrogen peroxide. The carbamide peroxide is generally considered safer and easier to handle than hydrogen peroxide. It also does not require a light to whiten the teeth, allowing it to be used at home.
The first application of Opalescence is performed in a professional office. The dentist will begin by taking a mold of the teeth and creating a pair of custom dental trays. The trays are filled with the carbamide peroxide gel and placed over the teeth after a thorough cleaning has been done.
The carbamide peroxide gel will enter into the enamel of the teeth and bond with organic matter that is causing the staining and discoloration. The initial procedure will last between one and two hours. Every five to fifteen minutes, the trays are removed and the gel is stirred in order to help maintain its chemical properties.
Once the procedure has been finished, the dentist may determine that a take home application kit is necessary. The take home kit is nearly identical to the process performed in the office. Because of the nature of the carbamide peroxide, it may take as long as two months for teeth to settle into the desired color permanently.
The only reported side effects of using Opalescence teeth whitening is an increase in sensitivity to hot and cold foods, however a dentist can prescribe a gel to help remove these effects. With good hygiene and regular cleanings, the whitening effects can last for many years after the treatment.