Knowledge about teeth

Today, let Xiaoya lead you to popularize the knowledge of teeth. If you don’t take care of your teeth, it will cause a lot of gum problems. As the saying goes, toothache is not a disease. knowledge. So what do you know about teeth?

There are two sets of teeth in a person's life, which are called deciduous teeth and permanent teeth according to the time and shape of eruption. There are 20 deciduous teeth, commonly known as milk teeth. Under normal circumstances, it occurs from the second month of the embryo, germinates about 6 months after birth, and fully erupts at about 2 and a half years old. Before the age of 0 to 6 years, the mouth is full of deciduous teeth, which is called deciduous dentition in medicine. Around the age of 6 to 12 years, there are both deciduous and permanent teeth in the mouth, which is called mixed dentition in medicine. After the age of 12, the mouth is full of permanent teeth, medically known as the permanent dentition. There are 28 or 32 permanent teeth, which start from the 5th month of the embryo, and begin to erupt around the age of 6. Then the deciduous teeth fall out in a certain order and age and are successively replaced by permanent teeth. Except for the third molars, all the deciduous teeth can fall out at about 13 to 14 years old, and all the permanent teeth will grow back. The third molars erupt between the ages of 18 and 25. The third molars are also called wisdom teeth. The number of erupted teeth varies from person to person. According to the different functions of the teeth, they are also different in shape, some are mainly used to cut food, called incisors; some are mainly used to tear food, called fangs; some are mainly used to grind food, It's called molaring. Among the 28-32 permanent teeth, there are 8 incisors, 4 canines, 8 premolars bicuspids, and 8-12 molars.

There is a lot of knowledge about teeth. If you want to better protect your teeth, you must at least understand the specific structure and classification of teeth, so as to protect your teeth more effectively.