Author/Authors :
Moslemzadeh، Seyed Hossein نويسنده Department of Orthodontics, Dentistry School, Tabriz
University of Medical Sciences, Tabriz, IR Iran , , Moghaddam، Negar نويسنده Endodontic Department, School of Dentistry, Tabriz
University of Medical Sciences, Tabriz, IR Iran , , Foroughi Moghaddam، Saeid نويسنده Department of Orthodontics, Dentistry School, Tabriz
University of Medical Sciences, Tabriz, IR Iran , , Rafighi، Ali نويسنده Department of Orthodontics, Dentistry School, Tabriz
University of Medical Sciences, Tabriz, IR Iran , , Ghojazadeh، Morteza نويسنده PhD, Assistant Professor, Department of Physiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran Ghojazadeh, Morteza , Rasouli، Farzaneh نويسنده Department of Orthodontics, Dentistry School, Tabriz
University of Medical Sciences, Tabriz, IR Iran ,
Abstract :
Background Interclinoid ligament calcification and dimensional
changes in Sella Turcica seen on cephalometric radiographs are
associated with some bone abnormalities as well as normal variations.
Merging of anterior and posterior clinoid processes, known as Sella
Turcica bridging or roofing and other changes in this area may occur as
a part of large skeletal growth changes in body and may have association
with craniofacial skeletal patterns development. Objectives The aim of
the present study was to compare Sella Turcica bridging and dimensions
of patients with various skeletal patterns to investigate whether there
is a correlation between Sella Turcica region changes with skeletal
patterns or not, and on the other hand, to know if these changes could
be used as predictive indices for growing patients skeletal patterns.
Materials and Methods A total of 108 cephalometric radiographs (36 Class
I, 36 Class II, and 36 Class III) were randomly selected for evaluation.
Sella Turcica was traced on acetate paper and scanned to produce digital
images. The dimensions of Sella Turcica were measured with computer
software using the Silverman, Kisling, and Axelsson method. To determine
bridging, Leonardi’s method was employed. To determine the association
of Sella Turcica bridging and dimensions with different malocclusions,
chi-squared test and one-way ANOVA were used. Results The means of Sella
Turcica lengths in three groups were significantly different (P = 0.01).
Mean depth and diameter, however, were not significantly different
between malocclusions. In addition, bridging was not significantly
different among three malocclusions evaluated. Conclusions According to
the results, mean length of Sella Turcica, rather than depth and
diameter, was significantly associated with the type of malocclusion.
Sella Turcica cavity length is larger in Cl III patients in comparison
with Cl I ones and may have predictive value in some instances.
