"The color of teeth is totally different" 1. In general, the color of the front teeth is lighter than that of the back teeth, the color of the cut teeth is lighter than that of the gum end, and the neck of the teeth is slightly yellow.

3, heredity (ask your parents if they took medicine when they were pregnant), development reasons Yellow people have such teeth, and black people have big white teeth. .

Seeing that your upper teeth are slightly demineralized, go to the supermarket to buy fluoride toothpaste and brush it every day (* not to solve the yellowing problem)

Don't just hope that your teeth are white, wait until you grow up. Look, your teeth are in good condition. What you care about now is your dentition arrangement.