The causes and treatments of teeth grinding are commonly as follows: 1. Fire in the spleen meridian: a more important cause of teeth grinding, which can be treated by means of spleen-returning soup. Tooth grinding is more common in clinical practice, and the degree of grinding needs to be judged. Occasional occurrences are generally not relevant, but patients should also be asked whether they are accompanied by dreaming, false fire on inflammation, stress, etc. These factors may lead to heart fire on inflammation; 2. Spleen deficiency: also the main cause of tooth grinding, because the spleen and stomach main oral cavity, perilabial, tongue, etc.; 3. Kidney deficiency: relatively rare, such as kidney deficiency in children and lead to tooth grinding. 4. Bite Bad relationship will lead to grinding teeth. It needs to be adjusted according to the specific occlusal relationship.