Related Experiment Video
Updated: Jan 30, 2026

Endoscopic Septoplasty with Limited Two-line Resection: Minimally Invasive Surgery for Septal Deviation
Published on: June 20, 2018
Assessment of Concha Bullosa and Nasal Septal Deviation and Their Correlation with Palatal Dimensions in an Iranian
Foozie Zahedi1, Abbas Shokri2, Tayebe Ebrahimi1
1Department of Oral and Maxillofacial Radiology, Hamadan University of Medical Sciences, Hamadan, Iran.
Background:
Obstruction of the upper airways may lead to dental and skeletal changes. Nasal septal deviation (NSD) and concha bullosa (CB) are associated with nasal airway obstruction. Mouth breathing is also linked to alterations in maxillary growth and palatal dimensions. This study aimed to compare palatal dimensions in Iranian individuals with and without NSD and CB using cone-beam computed tomography (CBCT).
Methods:
This retrospective study analyzed 204 CBCT scans obtained with a large field of view. Scans were categorized into four groups based on the presence or absence of CB and NSD. The deviated septal curve angle (DSCA), palatal inter-alveolar length (PIL), palatal arch depth (PAD), and maxillopalatal arch angle (MPAA) were measured. Group comparisons were performed using one-way ANOVA, followed by post hoc pairwise tests.
Results:
presence of CB was significantly associated with changes in mean PIL in both males and females (P=0.02). Only mean PIL showed significant sex differences, being longer in males than females (P=0.01). No significant differences in palatal dimensions were observed between individuals with and without NSD. The four groups differed significantly in mean PIL, MPAA, and DSCA (P<0.05).
Conclusion:
CB may significantly alter palatal dimensions and could be associated with skeletal malocclusion. No significant differences in palatal depth and length were found between individuals with and without NSD.
More Related Videos
10:23Author Spotlight: Three-Dimensional Cephalometric Landmark Annotation Demonstration on Human Cone Beam Computed Tomography Scans
Published on: September 8, 2023
09:49Dual-phase Cone-beam Computed Tomography to See, Reach, and Treat Hepatocellular Carcinoma during Drug-eluting Beads Transarterial Chemo-embolization
Published on: December 2, 2013
Related Concept Videos
Computed Tomography
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
Estimating Population Standard Deviation
Estimating Population Mean with Known Standard Deviation
The confidence interval estimate will have the form as follows:
(point estimate - error bound, point estimate +...
Estimating Population Mean with Unknown Standard Deviation
William S. Gosset (1876–1937) of the...
Variation: Normal Distribution, Range, and Standard Deviation
Imaging Studies III: Computed Tomography