In fact, the food eaten by ancient humans is relatively rough, resulting in serious tooth wear and poor medical and health conditions. The teeth are long and smashed to create vacancies. Therefore, the wisdom teeth that grow up at the latest have a relatively large room for growth, and can smoothly fill the chewing food.
However, modern foods are getting more and more refined, and health care is much better. The teeth can be filled with missing teeth, which leads to the shrinking space of wisdom teeth. It is easy to grow out or grow long. It will not work at the end, and it will cause toothache. Drop it.