title: Prevalence of zygomatic air cell defect in adults--a retrospective panoramic radiographic analysis.
abstract: OBJECTIVE
  This research involved retrospectively evaluating panoramic radiographs of patients from India with the intention of assessing the prevalence of Zygomatic Air Cell Defect (ZACD) and establishing its dominant location and type.
  
  
  METHODS
  Seven thousand seven hundred and fifty-five panoramic radiographs of routine outpatients aged between 19 and 91 years were concomitantly evaluated by four investigators for estimating the prevalence and characteristics of the Zygomatic Air Cell Defect.
  
  
  RESULTS
  The prevalence of ZACD was noted to be 1.82%, with male preponderance. Unilateralality and multilocular appearance of ZACD were the dominant patterns observed.
  
  
  CONCLUSIONS
  The frequency of ZACD amongst Indian population is in harmony with most of the similar studies conducted on various geographic populations.
authors.affiliation: Department of Oral Medicine and Radiology, JSS Dental College and Hospital, SS Nagar, Mysore 570015, India. patilkarthik@rediffmail.com
authors.forename: Karthikeya
authors.initials: K
authors.lastname: Patil
authors.forename: V G
authors.initials: VG
authors.lastname: Mahima
authors.forename: Suchetha N
authors.initials: SN
authors.lastname: Malleshi
authors.forename: H S
authors.initials: HS
authors.lastname: Srikanth
mesh_terms: D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D000388:Air; D005260:Female; D006801:Humans; D007194:India / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D011862:Radiography, Panoramic / Q000379:methods* / Q000706:statistics & numerical data*; D015203:Reproducibility of Results; D012189:Retrospective Studies; D018570:Risk Assessment; D012307:Risk Factors; D012680:Sensitivity and Specificity; D017678:Sex Distribution; D055815:Young Adult; D015050:Zygoma / Q000002:abnormalities* / Q000000981:diagnostic imaging*