Toothache heart fossa pain is mainly caused by intercostal neuritis, myocardial infarction, tuberculosis and other causes of radiating pain. 1. Intercostal neuritis: it is mainly caused by the inflammatory reaction of the intercostal nerves caused by viruses, trauma and other factors, and this kind of patients mainly suffer from chest pain, and a few of them are accompanied by toothache. 2. Myocardial infarction: due to the existence of sympathetic and parasympathetic nerve connections between the heart and the teeth, radiating pain may occur when the heart is in a state of ischemia and organic pathology. Toothache and chest pain are mostly radiating toothache, which occurs in anterior wall myocardial infarction. 3. Tuberculosis: usually caused by Mycobacterium tuberculosis infection, which is also closely related to the patient’s low immunity and do not pay attention to their own care, usually cause the patient’s cough and other symptoms, when the coughing symptoms are serious, the heart and mouth fossa pain and may be radiated to the periodontal. For toothache and fossa pain, it is necessary to go to the hospital in time to do relevant examinations to determine the cause of the disease and give appropriate treatment.