Aplasia and agenesis of the frontal sinus in Turkish individuals: a retrospective study using dental volumetric tomography

Int J Med Sci. 2011 Apr 8;8(3):278-82. doi: 10.7150/ijms.8.278.


Agenesis of the paranasal sinuses is an uncommon clinical condition that appears mainly in the frontal (12%) and maxillary (5-6%) sinuses; in some populations, it appears at a higher proportion. This study investigated the prevalence of agenesis of the frontal sinuses using dental volumetric tomography (DVT) in Turkish individuals. The frontal sinuses of 410 patients were examined by DVT scans in the coronal planes for evidence of the absence of the frontal sinuses. A bilateral and unilateral absence of the frontal sinuses was seen in 0.73% and 1.22% of cases, respectively. In one case, both agenesis and aplasia of the frontal sinus was seen (0.24%). The low percentage of frontal sinus agenesis must be considered during pre-surgical planning related to the sinuses. DVT may be used as a diagnostic tool for the examination of frontal sinus aplasia.

Keywords: Dental volumetric computed tomography; Frontal sinus agenesis; Paranasal Sinuses.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Cone-Beam Computed Tomography / methods*
  • Female
  • Frontal Bone / abnormalities
  • Frontal Bone / diagnostic imaging
  • Frontal Sinus / abnormalities*
  • Frontal Sinus / diagnostic imaging
  • Humans
  • Male
  • Maxillofacial Abnormalities / diagnostic imaging
  • Maxillofacial Abnormalities / epidemiology*
  • Middle Aged
  • Retrospective Studies
  • Sex Characteristics
  • Turkey / epidemiology
  • Young Adult