Uncontrolled chattering of upper and lower teeth on their own may be due to cold stimulation, neurological disorders in the brain, cerebrovascular lesions, etc. The main treatment methods are keeping warm, regulating emotions and medication. 1. If the upper and lower teeth chatter uncontrollably due to cold stimulation, keep warm. 2. Most of the neurological disorders in the brain are caused by psychological factors such as long-term mental tension and stress. The main treatment is to regulate the mood, take psychotropic drugs, such as glutamine. The medication should be used under the guidance of a doctor. 3. Cerebrovascular lesions cause upper and lower teeth to chatter uncontrollably, should be timely in the hospital, do a brain examination, under the guidance of the doctor targeted treatment. It is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor’s treatment.