Oral Radiology

, Volume 35, Issue 2, pp 127–134 | Cite as

Morphology, incidence of bridging, and dimensions of sella turcica in different racial groups

  • Fenik Kaml Muhammed
  • Adil O. Abdullah
  • Zhwan Jamal Rashid
  • Tamara Pusic
  • Mohammed F. Shbair
  • Yi LiuEmail author
Original Article



This study was performed to assess the morphological appearance, incidence of bridging, and linear dimensions of the sella turcica (ST) in Bosnian and Iraqi subjects, and to identify associations of sex, age, and racial group with the size of the ST.


The digital standardised lateral cephalograms of 360 Bosnian and Iraqi patients (116 female, 64 male; age range 8–28 years) were retrospectively analysed. The following ST-related parameters were analysed on the lateral cephalograms: sella morphology, sella bridging, and sella size. The data were correlated with sex, age, and race.


The ST exhibited a normal morphology in most subjects of both races (86.7%). The frequency of partial bridging was found in 38.9 and 37.2% of Bosnian and Iraqi subjects, respectively. A significant correlation was detected between the length of the ST and sex in both the Bosnian and Iraqi subjects (p < 0.05). A direct correlation was present between patient age and the size of the ST in both races at the 0.01 and 0.001 levels for depth, length, and diameter. When race was compared with sella size, a significant difference was found in the length and depth of the ST (p <  0.001).


Similarities were found between Bosnian and Iraqi subjects in the morphology, incidence of bridging, and linear dimensions of the ST. Length was the only parameter significantly associated with sex, age, and racial group. These findings could be used as reference standards for studying the ST in both races.


Sella turcica Sella shape Sella bridging Bosnian Iraqi 



This work was supported by the Chinese Scholarship Council (CSC) under Grant number CSC-2016368012.

Compliance with ethical standards

Conflict of interest

Fenik Kaml Muhammed, Adil O. Abdullah, Zhwan Jamal Rashid, Tamara Pusic, Mohammed F. Shbair, and Yi Liu declare that they have no conflict of interest.

Human rights statement

All procedures followed were in accordance with the ethical standards of the responsible committee (institutional and national) and with the Helsinki Declaration of 1964 and later versions. The study protocol was approved by the Local Research Ethics Committee of Stomatology of China Medical University (Shenyang, People’s Republic of China). This article does not contain any studies with animal subjects performed by any of the authors.

Informed consent

Informed consent was not needed in the study.


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Copyright information

© Japanese Society for Oral and Maxillofacial Radiology and Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.Department of Orthodontics, School of StomatologyChina Medical UniversityShenyangPeople’s Republic of China
  2. 2.Stomatology Key Laboratory Research Center, School and Hospital of StomatologyChina Medical UniversityShenyangPeople’s Republic of China
  3. 3.Department of Orthodontics, School of DentistryThe University of SulaimaniSulaimaniIraq
  4. 4.Private ClinicBanja Luka, BosniaBosnia and Herzegovina

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