title: An unusual finding on routine dental pan-oral tomography.
abstract: Radio-opaque foreign bodies are commonly seen in dental pan-oral tomographs. A case is described of the presentation of a patient with a signet ring lodged in the left nasal cavity discovered by routine pan-oral tomography in dental practice, and of its subsequent removal by an otorhinolaryngologist.
authors.affiliation: North Derbyshire Royal Hospital, Calow, Chesterfield.
authors.forename: S
authors.initials: S
authors.lastname: Lloyd
authors.forename: V R
authors.initials: VR
authors.lastname: Talati
authors.forename: J P
authors.initials: JP
authors.lastname: Ward
mesh_terms: D002648:Child; D005260:Female; D005547:Foreign Bodies / Q000000981:diagnostic imaging*; D006801:Humans; D009296:Nasal Cavity; D011862:Radiography, Panoramic