Where are the four wisdom teeth, two above and two below?

Yes, there are two above and two below.

Definition and explanation of wisdom teeth;

According to medical knowledge, wisdom teeth are the teeth that people begin to grow in adulthood. The average child will grow 28 teeth after deciduous teeth fall off, and adults will grow 4 teeth, that is 32, which means you have grown up!

In medicine, wisdom teeth are also called the third molar, the eighth tooth from front to back. Wisdom tooth is the last permanent tooth among 32 human permanent teeth, which is located on the last side of the upper, lower, left and right dental arch. Because wisdom teeth are mostly around 16 ~ 24 years old when they grow up, people's wisdom is also referred to as wisdom teeth when they grow up. In the process of human evolution, as the food becomes more and more refined, the burden on the jaw bone decreases accordingly, which leads to the continuous reduction of the bone mass of the jaw bone, but the size of the teeth does not decrease with it, which eventually leads to the lack of teeth eruption. The third molar that finally erupts is the most likely to form pericoronitis of wisdom teeth, which is the main reason for the abnormal eruption position of wisdom teeth. The origin of wisdom teeth refers to the four third molars on the innermost alveolar bone in human mouth, one on the top, one on the bottom, one on the left and one on the right. Because these four third molars just began to erupt around the age of 20, at this time, people's physical and psychological development is close to maturity, so they are regarded as a symbol of "wisdom arrival", so they are called "wisdom teeth"-wisdom teeth. In fact, from the perspective of modern medicine, wisdom teeth are the necessity of human evolution. As we all know, it is a universal law in the theory of biological evolution to "use in the process and abandon in the process". Wisdom teeth are an excellent example.

Wisdom teeth, the scientific name of the third molar, commonly known as wisdom teeth, upright teeth and full-head teeth, are the teeth closest to the throat in the mouth. If they all have a ***4, two maxilla and two mandibles, they will generally grow to be over 16 years old. Compared with deciduous teeth and permanent teeth replaced in childhood, wisdom teeth usually grow when human mind is mature, hence the name. There are great differences among individuals in the growth of wisdom teeth. Some people grow up before the age of 20, some people grow up at the age of 40 or 50, and some people never grow up. This is normal. Moreover, not all four wisdom teeth will grow out completely. Some people's wisdom teeth may be only 1 2, and some wisdom teeth even stop growing when they are half grown. This condition is called impacted wisdom teeth. The position of wisdom teeth starts from the gap between the front teeth and counts the number of teeth inward from one side of the front teeth. If there is an eighth tooth, it is a wisdom tooth.