The Potential Link Between Abdominal Migraine and Chronic Apical Periodontitis: A Case Report.

According to the International Classification of Headache Disorders, Third edition (ICHD-3), abdominal migraine is a diagnosis of exclusion, characterized by recurrent abdominal pain accompanied by nausea, vomiting, anorexia, or pallor. We report a case of a 44-year-old female with abdominal migraine associated with chronic apical periodontitis. Treatment with root canal therapy and periodontal management improved both the oral condition and migraine symptoms.