title: A prospective epidemiological study for odontogenic and non-odontogenic lesions of the maxilla and mandible in Queensland.
abstract: OBJECTIVE
  Investigate the epidemiological profile for odontogenic and non-odontogenic intra-osseous lesions in the Queensland population (4.56 million) over 12 months.
  
  
  METHODS
  The following data were prospectively collected from all Queensland histopathology laboratories in 2011: gender, age at diagnosis, location of lesion, histopathological diagnosis of the lesion and the patient's postcode.
  
  
  RESULTS
  Six-hundred and thirty-three lesions were collected, comprising 540 odontogenic cysts and 93 odontogenic tumors. Radicular cyst was the most frequently diagnosed lesion (247/540, 45.7%). The overall incidence of odontogenic tumors was 20.4/million. Keratocystic odontogenic tumor was the highest (15.1/million), followed by ameloblastoma (2.41/million) with odontoma and calcifying cystic odontogenic tumor having the same incidence (1.1/million). The 39 non-odontogenic intra-osseous lesions had an overall incidence of 8.55/million. Nasopalatine cysts had an incidence of 2.19/million, followed by fibrous dysplasia and central giant cell granuloma (1.97/million).
  
  
  CONCLUSIONS
  Odontogenic tumors are 5 times less common than cysts. Non-odontogenic lesions are rare, with benign lesions 6.8 times more common than malignant lesions.
authors.affiliation: Maxillofacial Department, Royal Brisbane and Womens' Hospital, Brisbane, Queensland, Australia. johno_87@hotmail.com
authors.forename: Nigel R
authors.initials: NR
authors.lastname: Johnson
authors.forename: Neil W
authors.initials: NW
authors.lastname: Savage
authors.forename: Stauros
authors.initials: S
authors.lastname: Kazoullis
authors.forename: Martin D
authors.initials: MD
authors.lastname: Batstone
mesh_terms: D000293:Adolescent; D000328:Adult; D000564:Ameloblastoma / Q000453:epidemiology; D002648:Child; D003803:Dentigerous Cyst / Q000453:epidemiology; D016021:Epidemiologic Studies; D005260:Female; D005357:Fibrous Dysplasia of Bone / Q000453:epidemiology; D006101:Granuloma, Giant Cell / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D008297:Male; D008336:Mandibular Diseases / Q000453:epidemiology*; D008339:Mandibular Neoplasms / Q000453:epidemiology*; D008439:Maxillary Diseases / Q000453:epidemiology*; D008441:Maxillary Neoplasms / Q000453:epidemiology*; D008875:Middle Aged; D009631:Nonodontogenic Cysts / Q000453:epidemiology; D018333:Odontogenic Cyst, Calcifying / Q000453:epidemiology; D009807:Odontogenic Cysts / Q000453:epidemiology*; D009808:Odontogenic Tumors / Q000453:epidemiology*; D009810:Odontoma / Q000453:epidemiology; D011446:Prospective Studies; D011793:Queensland / Q000453:epidemiology; D011842:Radicular Cyst / Q000453:epidemiology