Acquired Oronasal Fistula

ACQUIRED ORONASAL FISTULA

  • Abnormal communication between the nasal and oral cavities caused by trauma or disease.
  • Most common caused by dental disease – when a deep maxillary periodontal pocket progresses to the apex of the tooth, lysing the bone between the apex of the alveolus and the nasal cavity or maxillary sinus.
  • Foreign bodies lodged between the dental arcades may cause pressure necrosis of the hard palate and subsequent development of an oronasal fistula.
Last modified: Tuesday, 11 January 2011, 5:24 AM