By nature our teeth are not able to be completely white. Each person they have their own tone, and can combine several colors – beige, white, yellow, grey. Their color depends on both individual characteristics of the organism, and the thoroughness of care for the oral cavity. Throughout life they are subjected to various "torture": Smoking, intake of solid, hot and cold food, consumption of coffee, tea, medication, etc. besides, many food products contain food dyes and chemical compounds which hurt the enamel. Healthy tooth can be identified by the dazzling radiance and brilliance.