Assessment of prevalence and volumetric estimation of possible Stafne bone concavities on cone beam computed tomography images

Oral Radiol. 2020 Jul;36(3):254-260. doi: 10.1007/s11282-019-00402-4. Epub 2019 Jul 20.


Objectives: Our study aimed to determine the prevalence and volumetric estimates of Stafne bone cavities (SBC) on cone beam computed tomography (CBCT) images.

Methods: This retrospective study, which involved the CBCT images of 1141 men and 1260 women with an age range of 10-90 years, aimed to determine the prevalence of SBCs and to calculate their volumes using the semi-automatic segmentation method.

Results: A total of 15 SBCs were diagnosed in 14 patients. Among the detected SBCs, 7.14% were found in a female patient and 92.86% were found in 13 male patients. Of the total number of SBCs, 6.67% were anteriorly located and 93.33% were posteriorly located. Bilateral SBCs had a prevalence of 0.04%; unilateral posterior SBCs 0.54% and anterior SBCs 0.04%. The mean SBC volume was calculated as 338.05 mm3.

Conclusions: The results of our study showed that SBC is a rare anomaly. In contrast to two-dimensional imaging techniques, CBCT allows a precise determination of SBCs' pattern of impact on adjacent bony structures, relationship with the mandibular canal and dimensions.

Keywords: Cone beam computed tomography; Quantitative evaluation; Salivary glands; Stafne bone cavity.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Child
  • Cone-Beam Computed Tomography*
  • Female
  • Humans
  • Male
  • Mandible*
  • Middle Aged
  • Prevalence
  • Radiography, Panoramic
  • Retrospective Studies
  • Young Adult