At first, against the background of skin color, black teeth themselves will appear white. Secondly, their teeth are indeed whiter than ours, because the whiteness of teeth is actually related to enamel. The enamel wrapped by bread on the outer layer of teeth is completely transparent, so the external color of teeth is the color of enamel that passes through enamel. The enamel of our teeth is light yellow, while the enamel of African blacks is a little lighter than ours.

2. Unique tooth cleaning appliance

Friends who have been to Africa or seen variety shows should know. Black Africans use a tree technique called Miswak to clean their teeth! They bite Miswak as soon as they get up in the morning and use it as whitening toothpaste to clean their teeth. In the case of occlusion, the liquid it metabolizes contains silicon dioxide and chloride, thus achieving the actual effect of cleaning teeth.

Hope to adopt