increases while chewing, clenching, bending over, exposure to cold, physical exertion, or increased pressure in the sinuses from coughing or sneezing [11]. Often, the odontogenic pain (site of the pain) is accompanied by a (frontal) headache and otolaryngologic (ENT) symptoms like nasal congestion or discharge. In order to provide an accurate diagnosis, a thorough history and accounting for inuencing factors in addition to ruling out a clear dental pathology is required. Intraoral or panoramic radiographs may be useful to exclude the dentition as being the source of the problem. The sinuses may appear cloudy, opaci­ed, and congested on the panoramic radiograph. Importantly, advanced imaging of the area and a consultation with an otolaryngologist for further evaluation (e.g., endoscopy) and management (clearing of the sinuses, culture of nasal uid or pus, NSAIDs or antibiotics according to the diag­nosis) may be in order. Computed tomography (CT) and magnetic resonance imaging (MRI) are the primary imaging modalities used to evaluate patients with sinonasal disease. Given its detailed depiction of bony anatomy, CT can accurately demonstrate the presence of sinonasal disease, such as an increase in uid accumulation and thickening of the sinus mucosal membranes, bony erosions, and anatomic variants, and is essential for surgical planning. Given its superior soft tissue contrast, MRI can accurately identify clinically suspected intracranial and intraorbital complications, delineate soft tissue extension of tumors, and distinguish mass from obstructed secretions [12]. This multidisciplinary approach allows for a more precise diagnosis resulting in appropriate management. The role of the dental practitioner is to be aware of the differential diag­nosis and, because they are not typically trained to evaluate sinonasal structures, to arrange the proper referral [10].