title: Airway in Class I and Class II skeletal pattern: A computed tomography study.
abstract: OBJECTIVE
  A normal airway is required for the normal growth of the craniofacial structures. The present study was designed to evaluate and compare the airway in Class I and Class II skeletal pattern and to see if there is any association between the airway and maxillomandibular relationship.
  
  
  METHODS
  Peripheral nervous system computed tomography scans of 30 patients were divided into two groups as Class I (ANB ≤ 4.5°), Class II (ANB ≥ 4.5°). The Dolphin three-dimensional version 11 was used to assess the airway.
  
  
  METHODS
  Correlations between the variables were tested with the Pearson correlation coefficient. Independent sample t-test was performed to compare the averages between the two groups. P < 0.05 was considered as statistically significant.
  
  
  RESULTS
  The ANB angle was negatively correlated with all the airway parameters. The airway area and volume was significantly reduced in Class II subjects compared to Class I.
  
  
  CONCLUSIONS
  The results suggest a strong association between the airway and skeletal pattern showing a reduced airway in Class II patients with a high ANB angle.
authors: Department of Orthodontics and Dentofacial Orthopedics, Amrita School of Dentistry, Amrita Institute of Medical Sciences, Cochin, Kerala, India.
authors: Deepthi
authors: D
authors: Paul
authors: Department of Orthodontics and Dentofacial Orthopedics, Amrita School of Dentistry, Amrita Institute of Medical Sciences, Cochin, Kerala, India.
authors: Sapna
authors: S
authors: Varma
authors: Department of Orthodontics and Dentofacial Orthopedics, Amrita School of Dentistry, Amrita Institute of Medical Sciences, Cochin, Kerala, India.
authors: V V
authors: VV
authors: Ajith
keywords: ANB angle; Airway; computed tomography