The maxilla we talk about in our daily life is actually the part behind the upper teeth in the mouth. There is also a folk saying about the maxilla, which is called "Tian". The part of the upper jaw is far away from the lips and blocked by the upper teeth, so it is not easy to clean up in the process of cleaning the mouth every day, so this position is prone to various inflammations.

There are many channels in this part of the maxilla. According to the theory of traditional Chinese medicine, when we stick our tongue on our maxilla, we can communicate our two meridians, so that the meridians of the whole body are connected and the qi and blood are smooth.