title: A retrospective analysis of sphenoid sinus hypoplasia and agenesis using dental volumetric CT in Turkish individuals.
abstract: OBJECTIVE
  In adults, sphenoid sinus agenesis is an extremely rare anomaly. The objective of this study was to investigate the prevalence of sphenoid sinus hypoplasia and agenesis using dental volumetric computed tomography (DVCT) in a population of Turkish individuals.
  
  
  METHODS
  DVCT scans in the axial, coronal and sagittal planes of the sphenoid sinus of 384 patients were examined for evidence of sphenoid sinus agenesis and hypoplasia.
  
  
  RESULTS
  In the DVCT scans, bilateral agenesis of sphenoid sinus was not seen. Unilateral agenesis of sphenoid sinus was seen in 0.26% of the sample, and sphenoid sinus hypoplasia was seen in 0.52%. Unilateral hypoplasia of the sphenoid sinus was observed in 0.26% of the sample, and bilateral hypoplasia of sphenoid sinus was observed in 0.26%.
  
  
  CONCLUSIONS
  In this study, we found a low frequency of sphenoid sinus agenesis. Compared with sphenoid sinus agenesis, the frequency of sphenoid sinus hypoplasia was higher. DVCT may be used as a diagnostic tool to investigate the paranasal sinus.
authors.affiliation: Department of Oral Diagnosis and Oral Radiology, Atatürk University Faculty of Dentistry, Erzurum, Turkey. bcakur@atauni.edu.tr
authors.forename: Binali
authors.initials: B
authors.lastname: Cakur
authors.forename: Muhammed Akif
authors.initials: MA
authors.lastname: Sümbüllü
authors.forename: Ahmet Berhan
authors.initials: AB
authors.lastname: Yılmaz
mesh_terms: D000293:Adolescent; D000328:Adult; D015331:Cohort Studies; D054893:Cone-Beam Computed Tomography / Q000379:methods*; D019465:Craniofacial Abnormalities / Q000000981:diagnostic imaging* / Q000453:epidemiology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D015994:Incidence; D008297:Male; D011861:Radiography, Dental / Q000379:methods*; D012189:Retrospective Studies; D018570:Risk Assessment; D012680:Sensitivity and Specificity; D013101:Sphenoid Sinus / Q000002:abnormalities* / Q000000981:diagnostic imaging*; D014421:Turkey; D055815:Young Adult