Spontaneous dissection of the internal carotid artery manifesting as pain in an endodontically treated molar.

Background: Dental pain is a common occurrence, whereas spontaneous dissection of an internal carotid artery is rare.

Case Description: The authors describe a patient who experienced a spontaneous dissection of an internal carotid artery that manifested initially as dental pain in an endodontically treated molar.

Clinical Implications: It is important for dental practitioners to be familiar with unusual causes of dental pain.