In my patient consultation area, there are a number of patients consulting the problem of night grinding teeth, now the causes and treatment of night grinding teeth to be organized, I hope it can help you! Pathogenic factors: 1, psychological factors Emotional tension is the most common pathogenic factors of teeth grinding. 2, incompatibility is considered to be another major factor in teeth grinding. 3, systemic factors Example: parasites, blood pressure and other systemic factors. 4.Occupation Jobs that require a high degree of precision have a tendency to develop bruxism. Hazards: The long contact time between upper and lower teeth and the high force can cause damage to the tissues of the dentition, periodontal, temporomandibular joint and masticatory muscles. Treatment: 1, remove the causative factors, patients with tension should remove the psychological factors and local factors. 2.For severe and recalcitrant cases, a coincidental pad should be made. 3.Tuning and grinding of the occlusion. 4.Repair treatment. 5.Myoelectric feedback therapy. 6.Treatment of various complications caused by excessive wear and tear.