Chest pain with tooth root discomfort should be considered firstly as angina pectoris and myocardial infarction, and secondly as other chest diseases complicating tooth and gum diseases. 1. Angina pectoris and myocardial infarction: the pain is mostly in the back of the sternum and the left chest or under the raphe, and it can radiate to the left shoulder and the inner side of the left arm, and even up to the ring finger and the little finger, and it can also radiate to the left side of the neck or cheek, which is often mistaken for toothache. If there is a history of coronary heart disease before the symptoms appear, or there are corresponding triggering factors (such as fatigue, after strenuous activities, nervousness, etc.), angina pectoris or myocardial infarction should be highly suspected. 2. Chest diseases: such as pleurisy, pneumothorax, massive pneumonia, etc. If you suffer from this kind of lung disease at the same time, there are periodontitis, gingivitis, pulpitis and other inflammation of teeth and gums, there will be chest pain with discomfort at the root of the teeth. Once chest pain with tooth root discomfort occurs, you should promptly go to the hospital for electrocardiogram and other examinations, and after actively ruling out cardiac chest pain, you can consider other diseases.