Nowadays, the market is flooded with teeth whitening kits making them a basic commodity in every household’s shopping list. The truth is that dentists offer better tooth whitening procedures and services that those offered by the teeth whitening kits. For the dentist to remove the stubborn stains from the teeth, he will use the laser beam together with a substantial amount peroxide to restore the natural brightness of the teeth. The process takes less than an hour. However, the duration is dependent on the nature of the stains. Through the teeth whitening process, you can have between 2 and 5 shades of white.