Advantages of tooth genes and skin color First of all, under the background of skin color, black teeth themselves will be very white. Secondly, their teeth are indeed whiter than ours, because the brightness of teeth is actually related to dentin. The enamel wrapped around the teeth is transparent, so the external color of the teeth is the color of the dentin that passes through the enamel. The dentin of our teeth is light yellow, while the dentin of Africans is a little lighter than ours.

2.

Special tooth cleaning products should be known to friends who have been to Africa or watched related programs. Africans use a branch called Miswak to clean their teeth! They will chew Miswak directly as toothpaste to clean their teeth in the morning. When chewing, the liquid it secretes contains silicon dioxide and fluoride to achieve the effect of cleaning teeth.

3.

Eating habits Because of the national economic situation, the African people's diet is relatively simple and pure. There are few additives in food, and the additives used are few, which also has a certain protective effect on teeth.