Bleaching makes your teeth brighter and lightens stains. A laser is used in taking an impression of the gums.
Teeth get stained by red wine, nicotine, coffee, tea, etc. or by medicines (e.g. preparations containing iron or nitrates). Bleaching teeth enables stained teeth to be artificially lightened. Carbamide peroxide is the active agent recommended for the bleaching of healthy stained teeth. Discolouration is removed by the oxidisation of colour pigments.