How do you know if you have wisdom teeth?

A person has two pairs of teeth in his life. A pair of deciduous teeth began to grow about 6 months after birth and began to fall off at the age of 6. After deciduous teeth fall off, they gradually grow a pair of permanent teeth that can be used for life. From 6 years old to 12 years old, it is the exchange period of deciduous teeth and permanent teeth. There were 20 deciduous teeth, 32 permanent teeth and 6 maxillary and mandibular teeth 10. With the growth and development of human body, the jaw bone becomes wider and longer. In addition to 20 permanent teeth in the original position of 20 deciduous teeth, there are three pairs of molars at both ends of the maxilla from front to back: the first pair is about 6 years old, the second pair is about 12 years old, and the third pair is generally about 18 ~ 25 years old. The third pair of molars appeared in young people around the age of 20, in a period of long body and long knowledge, so people called the third pair of molars that grew in this period wisdom teeth. Why do wisdom teeth feel pain? Because wisdom teeth grow the latest, the distance between the distal mandible and the second molar is very small, and there is not enough place to grow wisdom teeth, so the crown can only grow partially. If the alveolar bone is hard, wisdom teeth will grow in the direction of loose alveolar bone, which will lead to the horizontal or inclined growth of wisdom teeth in the proximal direction, and then there will be a feeling of swelling and pain. If the surface of the crown is covered by a part of the gum, a pocket is formed between the tooth surface and the gum, and food residues are easy to gather in the pocket, but it is not easy to wash out when brushing teeth and gargling, which creates favorable conditions for the growth and reproduction of bacteria. When the body's resistance is low, the gums of wisdom teeth tend to become inflamed. Normal wisdom teeth are good for chewing. If the position is not correct, it is not easy to correct, which often leads to gingivitis. It is better to remove it as soon as possible, which is more beneficial to health.