The jingle of teeth at the age of seven or eight.

It is said that children will lose their teeth when they are seven or eight years old, which is a normal physiological phenomenon of the human body. The reason why children's teeth are called dog teeth is because there is a base name in the hearts of the older generation, and children are good to feed, which is a unique nickname of the older generation.

Each of us grows deciduous teeth first, and when we reach a certain age, we have to change our teeth. Finally, all deciduous teeth will lose their teeth and grow new permanent teeth. There is a certain order for deciduous teeth to fall out. If you don't lose your teeth in order, there may be hidden dangers.