Tooth whitening can be a highly effective way of lightening the natural colour of your teeth without removing any of the tooth surface. It cannot make a complete colour change; but it will lighten the existing shade.
The total treatment can usually be done within three to four weeks. First, you will need two or three visits to the dentist. An impression is taken and a tray that looks similar to a mouthguard is made. Treatment is completed at home. The tray is a close fit around the teeth and the whitening product is placed into little wells built into the tray and held in contact with the teeth. The tray is worn for one to two hour at a time. The application continues nightly over two to four weeks,
On occasion a front root filled tooth in a prominent position may discolour. Whitening of teeth in these positions can be very conservative and can be a good, conservative alternative to a veneer or crown.