Cardiogenic toothache is suggestive of heart disease. The location of the pain is located below the sternum or in the precordial region, and can radiate to the mandible and jaw teeth, characterized by a more intense degree of pain with paroxysmal episodes, often arising during strenuous activity, after meals, and emotional excitement, and can be gradually relieved after a short rest. When oral examination is performed, it will be found that the pain exists on one side of the teeth, and the specific location cannot be determined, and there is no abnormality in the X-ray examination. Once abnormal changes in the ECG are shown, appropriate treatment should be given immediately.