Section Editor: Sandy Cheng-Yu Chen, M.D.
Taipei Medical University Hospital, Taipei, Taiwan
A comestible intraoral foreign body is dense dental material that typically has a Hounsfield unit value between 184 and 475. In this case, neck CT shows a well-defined, hyperdense lesion in the right buccal space (A, B, C, yellow arrows). Comestible intraoral foreign bodies are more dense than soft tissues. It is important to be aware of the CT appearance of a comestible intraoral foreign body, as it may be misdiagnosed as pathology (such as odontogenic tumor, vascular lesion, calculus, hematoma, etc.) and could lead to unnecessary further examinations and distress to the patients.