title: Rhinolith mimicking a toothache.
abstract: BACKGROUND
  A rhinolith is a calcified mass formed as a result of solidification of mucous foreign objects and gradual accretion of mineral salts. Toothache is not known to be the typical presenting symptom, and to our knowledge, has yet to be reported.
  
  
  METHODS
  A 42-year old female referred by her general dental practitioner with a four month history of constant pain of the unrestored upper right central incisor tooth. Incidentally, she also gave a one year history of right-sided sinonasal congestion and intermittent blood stained rhinorrhea.
  
  
  CONCLUSIONS
  Rhinoliths are uncommon and rarely encountered in clinical practice. This is due to the fact that they remain asymptomatic, and undetected for many years. They may present as incidental radio-opaque lesions in the nasal maxillary antrum on routine dental panoramic radiographs.
  
  
  CONCLUSIONS
  Rhinolith should be part of the differential diagnosis of atypical anterior maxillary dental pain in the absence of obvious clinical dental pathology.
authors.affiliation: Homerton University Hospital NHS Foundation Trust, UK. Electronic address: sandra.girgis@nhs.net.
authors.forename: Sandra
authors.initials: S
authors.lastname: Girgis
authors.affiliation: Homerton University Hospital NHS Foundation Trust, Barts Health NHS Trust, Mercy Ships, UK. Electronic address: leo.cheng@bartshealth.nhs.uk.
authors.forename: Leo
authors.initials: L
authors.lastname: Cheng
authors.affiliation: Homerton University Hospital NHS Foundation Trust, UK. Electronic address: darren.gillett@homerton.nhs.uk.
authors.forename: Darren
authors.initials: D
authors.lastname: Gillett
keywords: Rhinolith; Symptoms; Toothache