A toothache on the right side can be a precursor to diseases such as acute pulpitis, angina and myocardial infarction. 1. Acute pulpitis: If the right side of the tooth is subjected to hot and cold stimulation after the pain symptoms, the pain worsens at night when you sleep, you should be alert to whether there is acute pulpitis, especially when there are caries, dental trauma and periodontal disease, this is likely to be the precursor of acute pulpitis, the need for timely treatment to alleviate the pain and retain the affected tooth. 2. Angina: If patients with right-sided toothache do not pay attention to it, do not rest properly, and are emotionally unstable, angina will attack, and there will be squeezing pain in the anterior chest area. Therefore, when the symptoms of right-sided toothache, if also accompanied by pain in the anterior chest area, should also be alert to angina. 3. Myocardial infarction: after strenuous exercise, such as right-sided toothache, headache, abdominal pain and shoulder pain, should promptly consult a doctor, which may be the precursor of myocardial infarction, if the treatment is not timely, miss the best time for treatment, will cause irreversible damage to the myocardium. Patients with symptoms of right-sided toothache should go to the hospital in time to ask the doctor for a clear diagnosis and symptomatic treatment.