Whitening, also known as bleaching, is the procedure used to brighten teeth. There are two different ways to achieve a desired whiter smile, In-Office Bleaching and At-Home Bleaching.
In-Office Bleaching usually requires only one office visit. A protective gel or a rubber shield is placed over the gums to protect the soft tissue. A bleaching agent containing carbamide peroxide is applied to the teeth, and a laser light is then used to enhance the action of the whitening agent .
At-Home Bleaching requires an impression of the teeth to be taken to make a customized mouth guard to hold the whitening gel, containing carbamide peroxide, against the teeth. Once the mouth guard is made, it is worn for a period of time, generally from a couple of hours a day to every day during the night for up to four weeks or longer, if desired.