Tooth whitening has become very popular over the past few years. There are different whitening processes available on the market with claims of making teeth from 6 to 9 shades whiter. Whitening is simply any process that makes the teeth appear whiter. If you are considering getting your teeth whitened it is recommended that you consult with your dentist. For some patients the tooth whitening process can be very effective while others may not get the desired results. Not all tooth discolorations are correctable. For instance, if you have had bonding, veneers or tooth-colour fillings in your front teeth there are potential problems. Your dentist can advise you about which procedures will give you the best results. Bleaching is a common tooth-whitening procedure.