Terms of teeth Bleaching.

Our natural tooth color is just as the eyes and hair in our genes, because they affect the tooth color by coloring in the leg teeth (dentine), through the white enamel through it seems. The enamel is composed of minerals and protects the teeth against bacteria or acids. But also succumbs to the tooth enamel over time, the influences of food acids. By acids, the thin and porous enamel and the yellow teeth leg more visible. Moreover, pigments from food, smoke, red wine, coffee and Tea in the melting penetrate. (Note: According to the enjoyment of acidic foods or beverages should be Teeth not immediately be cleaned. Wait 1-2 hours before your toothbrush and toothpaste, because otherwise the melting will continue to attack.)
If discoloration is strong even through intensive cleaning can not be removed, may interfere with tooth whitening useful.