Children love teeth grinding can be caused by mental factors, neurological factors, dental occlusion factors, parasitic infections, local stimulation, etc. It is recommended to consult a doctor in time. 1. Mental factors: such as excessive excitement before going to bed, mental tension, etc., can affect the rest of the cerebral nerve area, which in turn leads to the contraction of the masticatory muscles, thus triggering the symptoms of teeth grinding. 2. Neurological factors: when the central nervous system dysfunction occurs in children, it can also lead to increased excitability of the brain, affecting the quality of sleep, thus triggering the phenomenon of teeth grinding. 3. Dental occlusion factors: pediatric dental dysplasia or improper eruption of milk teeth can also induce teeth grinding symptoms. 4. Parasitic infection: common parasites are roundworms and pinworms, which parasitize the intestinal tract and stimulate the intestinal wall through toxins, stimulate the cerebral cortex along the nerves, and induce spasms of masticatory muscles, thus leading to the appearance of teeth grinding, which is mostly seen in the night time sleep. 5. Local stimulation: can be caused by periodontitis, gingivitis and other diseases, children can also be accompanied by loose teeth, gum swelling, pain, bleeding gums and other discomfort. Children often grind their teeth, should consult a doctor in a timely manner, under the guidance of the doctor to identify the cause of the disease, if necessary, follow the doctor’s instructions for appropriate treatment.