title: Prevalence and distribution of odontogenic and nonodontogenic cysts in a Turkish population.
abstract: OBJECTIVE
  To determine the relative frequency and distribution of odontogenic and nonodontogenic cysts in a large Turkish population.
  
  
  METHODS
  A retrospective survey of jaw cysts was undertaken at the Oral Diagnosis and Radiology and Oral and Maxillofacial Surgery Department, Ondokuz Mayis University Dental School, Samsun, Turkey. Data were retrieved from clinical files, imaging, and histopathology reports from 2000 to 2008; a total of 12,350 patients were included. In each case, we analyzed age, gender, type and number of cysts, and cyst location. Imaging patterns and pathologies associated with cystic lesions were also determined.
  
  
  RESULTS
  The prevalence of odontogenic and nonodontogenic cysts was 3.51%; males were affected more frequently than females. There were 452 odontogenic cysts (98.5%) and seven nonodontogenic cysts (1.5%). The most frequent odontogenic cyst was radicular (54.7%), followed by dentigerous (26.6%), residual (13.7%), odontogenic keratocyst (3.3%), and lateral periodontal cyst (0.2%). Nasopalatine duct cyst (1.5%) was the only nonodontogenic cyst. By age, cysts peaked in the third decade (24.2%). Concerning location, no statistically significant difference was found between the maxilla and mandible (p>0.05). The most frequent radiological feature of these lesions was unilocular cyst (93.7%). Pathologies associated with cystic lesions occurred in 14.7%.
  
  
  CONCLUSIONS
  The prevalence of both odontogenic and nonodontogenic cysts were lower than that reported in many other studies. In our study population, cysts were mainly inflammatory in origin.
authors: Department of Oral Diagnosis and Radiology,Ondokuz Mayıs University, School of Dentistry, Kurupelit-Samsun, Turkey.
authors: Aydan
authors: A
authors: Açikgöz
authors: Emel
authors: E
authors: Uzun-Bulut
authors: Bora
authors: B
authors: Özden
authors: Kaan
authors: K
authors: Gündüz
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D005260:Female; D006801:Humans; D007571:Jaw Diseases / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D009631:Nonodontogenic Cysts / Q000453:epidemiology*; D009807:Odontogenic Cysts / Q000453:epidemiology*; D015995:Prevalence; D012189:Retrospective Studies; D014421:Turkey / Q000453:epidemiology; D055815:Young Adult