Int J Stomatol ›› 2023, Vol. 50 ›› Issue (6): 653-660.doi: 10.7518/gjkq.2023098

• Orthodontics • Previous Articles     Next Articles

Morphological characteristics of sella turcica and its relationship with malocclusion

Wang Luodan1(),Fan Hong1,2()   

  1. 1.School of Stomatology, Shanxi Medical University, Taiyuan 030001, China
    2.Dept. of Orthodontics, Shanxi Provincial People’s Hospital Affiliated to Shanxi Medical University, Taiyuan 030012, China
  • Received:2023-05-07 Revised:2023-08-20 Online:2023-11-01 Published:2023-10-24
  • Contact: Hong Fan;


The sella is a saddle shaped bone located on the inner surface of the sphenoid bone. In the field of orthodontics, the sella point at the center of the sella is one of the most commonly used landmarks in cephalometric analysis. Its morphology is often used to describe craniofacial morphology, and then evaluate the relationship between craniofacial morphology and maxillary and mandible. Recently, scholars have found that the size and morphological changes of the sella turcica, especially the saddle bridge, are often closely related to craniofacial malformations and tooth dysplasia. Orthodontists should be familiar with the normal anatomical structural characteristics and morphological variations of the sella turcica region in order to identify and study the relevant pathological conditions. This study mainly summarized the morphological characteristics of the sella turcica, and the correlation between various types of skeletal malocclusions, tooth development abnormalities and sella turcica morphology, providing new auxiliary diagnostic ideas for clinical diagnosis and treatment.

Key words: sella turcica, saddle bridge, morphology, skeletal malocclusion, tooth development abnormality

CLC Number: 

  • R 783.5


Fig 1

The anatomical structure of the sella turcica"

Fig 2

Schematic diagram for measurement of saddle size"

Fig 3

Anatomical classification of the sella turcica"

Fig 4

Imaging morphological classification of butterfly saddle"

Fig 5

Normal saddle and saddle bridge"

Fig 6

Type 1 of saddle bridge (Becktor classification)"

Fig 7

Type 2 of saddle bridge (Leonardi classification)"

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