In the very early days, people were not much concerned about wisdom teeth, because at that time there was no Haagen-Dazs, no cheesecake, people ate what now seems to be a very LOWER coarse food. And our organism, but there is a very obvious feature – with in and out. Every organ in the body in the body allows the scope of the more developed, such as muscles, head and bones, if not used for a long time will slowly degenerate, such as muscle wasting atrophy. Therefore, our upper and lower jaws are constantly stimulated to eventually complete their growth and development during the normal use of teeth (chewing coarse mother, etc.). However, people now, finally get rid of the old days of poverty, but also always want to say byebye to the old coarse food, think that eat those things again not upscale, so that eating no longer effort, teeth are no longer subject to greater force, the jawbone is naturally slightly underdeveloped. Then come to the wisdom teeth. Wisdom tooth is the third molar in the mouth most by the side of the throat, because it happens to rank the old eight, also called the 8th tooth. Why is it called “wisdom teeth” and not “end teeth”? That is because it grows out very late, generally between 16 and 25 years old, when the physical and psychological development of people are close to maturity, there is a symbol of “wisdom”, so commonly known as “wisdom teeth”. It is not that people with wisdom teeth are more intelligent. There are usually four wisdom teeth, one on each side. The relationship between the teeth and the jawbone, in the words of the ancients, is the same as the relationship between water and the boat in “water can carry the boat, but also can overturn the boat”. If the water can be reasonably drained, the wind and waves are calm, then the boat on the water can go smoothly, but if the water cannot stretch itself according to the laws given by nature, then the boat on the water is in danger of capsizing. The same is true for teeth and bones, if the jawbone is well developed, enough teeth to gallop, naturally able to grow a set of neat and beautiful teeth; if the jawbone does not get good development, then his teeth on top will be easy to “bump”, crooked, natural growth is not neat. As the last of the “abrasive goblins” to erupt, wisdom teeth are in an awkward position – “I was born before you were born, but I was born before you were old”. When the jawbone is in the best age of development, the molar is still just a small embryo, in the corner silently stay it. If the jaws are not prepared in advance for the birth of this “little eight” eighth chair, then by the time the little eight comes out, the jaws are basically no longer growing. “The gentleman hates me born late, I hate the gentleman born early”, then it can only be “day thinking about the gentleman do not see the gentleman, drink the water together” – the small eight in order to express the longing for the jawbone, as Meng Jiangnu general The top has been top ah top ah, at first the back of the small seven top a hole (because the groove between the two gutter toothbrush can not brush, food embedding lead to tooth decay), and then the small seven can not stand to transfer this resentment to the whole row of teeth, a push a, the final loss is the front of the small one two three, the front teeth are also top crooked. So! In order to solve this naughty little eight, the master can only bear the pain and pull out this bad child. As for the front crooked teeth, can only be corrected.