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Folia Morphol (Warsz). 2018 Nov 16. doi: 10.5603/FM.a2018.0106. [Epub ahead of print]

Volumetric and three-dimensional examination of sella turcica by cone-beam computed tomography: reference data for guidance to pathologic pituitary morphology.

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department of orthodontics, faculty of dentistry, gazi university, emek 8.cad. 81.sok, ankara, Turkey.



To assess the dimensions and volume of sella turcica in healthy Caucasian adults with normal occlusion and facial appearance from cone-beam computerized tomography (CBCT) images.


CBCT images of 80 Caucasian adult patients (40 males, 40 females) with normal facial appearance and occlusion taken previously for diagnostic purposes were evaluated. Two groups were constructed in accordance to gender. The volume, length, diameter, and depth of the sella turcica were measured by Romexis software program. Mann Whitney U test and Independent t-tests were used for statistical analysis.


The mean lengths of the sella were 9.9mm and 10.2mm, depths were 9.2mm and 8.8mm and diameters were 12.3mm and 12.1mm in female and male groups, respectively. Between the genders, no statistically significant differences were found for any of the measurements. There were significantly higher values for the volume of sella turcica in males than in females (1102±285.3mm³ and 951.3±278.5mm³ respectively).


The dimensions of sella turcica in healthy caucasian adults with normal occlusion and facial appearance revealed nonsignificant interdifferences of the genders. Individual variability in dimensions and gender differences in the volume are of importance in comparison of patients with craniofacial syndromes and aberrations. Knowledge concerning the dimensions and volume of sella turcica will be clinically relevant for a guidance to consciously realize pituitary disorders.


Turkish saddle; adult; cone beam computed tomography; gender differences; sella turcica size; sella turcica volume

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