Foreign bodies in the nose are commonly found in children. Boredom, curiosity, habit, fun-making and mental retardation have all been mentioned as causes of foreign bodies in the nose. This report describes an undetected nasal foreign body in a child which was discovered in a dental radiograph and also the subsequent removal of the body.-A five-year-old boy was brought by his mother to the Pedodontic Department of Meikai University for a regular dental check up. His medical history and oral findings showed nothing particular to report. The orthopantomogram revealed an unusual radiopaque-appearing body in the right nasal cavity of the patient. The mother stated there were no subjective symptoms which would have indicated its presence. The patient was referred to the Department of Otorhinolaryngology in this University Hospital for evaluation and removal of the foreign nasal body. The examination of the patient revealed that the radio-opaque and round shape object was located in the anterior portion of the right nasal passage. The object was removed from the nose by grasping forceps and suction pipe immediately without local anesthesia. Gross examination of the object revealed a plastic toy bullet of slightly rugged appearance. The patient did not complain of symptons after the removal of the object.-Many of the foreign bodies in the nose are found to be associated with some irritative disease, but in this case, the subject had no such symptons. If left for long periods of time, these objects may lead to inflammation or infection of the nasal mucous membrane. This case was presented to show that dentists may possibly be the first to discover foreign bodies in the nose.