AbstractA 25-year-old patient was admitted to the emergency room presenting headaches after a traumatic brain injury (TBI) 30 days before, when he collided frontally with another driver. After a skull radiography, the presence of a foreign body was observed in the frontal sinus. A cranial computed tomography (CT) scan found that it was a tooth. The patient underwent surgical treatment for the removal of the tooth. Traumatic brain injury caused by non-missile penetrating objects is unusual, and has been described in case reports in the literature. To the best of our knowledge, no similar reports can be found in the literature.