Core Tip: Why “wisdom teeth“? In the process of human growth, there are two sets of teeth: one set erupts after birth, called “deciduous teeth”, this set of teeth can only accompany us through a happy childhood, these teeth will complete their historical mission around the age of 6 And glorious retirement; from the age of 6 to the age of 12 to 13, the deciduous teeth are constantly replaced by the second set of newly grown teeth (permanent teeth). There are 28 to 32 permanent teeth.
According to the shape and function, permanent teeth are divided into four categories, namely incisors, canines (the two are the front teeth we often say), bicuspids and molars (the two are the posterior teeth we often say). With the development of the human body, these teeth continue to erupt, generally without any special feeling.
Wisdom teeth, scientific name of the third molar, commonly known as wisdom teeth, standing teeth, are the teeth closest to the throat, if all grow out, a total of 4, two in the upper and lower jaws, usually grow out at the age of 16 or later. In contrast to milk teeth that grow in childhood and permanent teeth that are replaced in childhood, wisdom teeth usually erupt when the human mind has matured, hence the name.
In terms of the growth of wisdom teeth, there are great individual differences. Some people grow before the age of 20, some people only grow in their 40s and 50s, and some people do not grow in their entire lives. This is normal. Moreover, all four wisdom teeth are not necessarily full. Some people may only have 1 to 2 wisdom teeth, and some wisdom teeth may not grow even half way. This is called impacted wisdom teeth.
In the primitive human stage, due to the wear of rough food, the height and width of the teeth continued to decrease, and the back teeth had enough space to move forward in turn, so that our third molars could begin to erupt around the age of 16;
However, in modern times, as human food becomes more refined, the wear and tear of teeth is decreasing. At the same time, due to the reduced stimulation of chewing fine food on the jawbone, the jawbone slowly degenerates and gradually shrinks, which inevitably results in insufficient space for teeth to erupt and wisdom teeth. The eruption time of the tooth is also postponed to adulthood, that is, between the ages of 18 and 30. Since this stage is generally considered to be the peak period of intellectual development, people often call this tooth “wisdom teeth”, which also produces “wisdom teeth”. ” statement.
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