The take-home approach to tooth whitening and bleaching using tooth whitening gel involves your dentist taking a mould of your teeth. Trays are then made which are used to hold the tooth whitening gel. Your dentist will explain to you how to apply the gel to the tray.

You may have to use the tooth whitening gel trays for two to four weeks, or more, if your teeth are significantly stained. You may need two or three visits to your dentist during this period.

Most types of tooth staining can be whitened by the use of tooth whitening gel. The effects of this tooth whitening product can last for two to three years depending on what you eat, drink and smoke over that period.