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Airway in Class I and Class II skeletal pattern: A computed tomography study.
Deepthi Paul1, Sapna Varma1, V V Ajith1
1Department of Orthodontics and Dentofacial Orthopedics, Amrita School of Dentistry, Amrita Institute of Medical Sciences, Cochin, Kerala, India.
Contemporary Clinical Dentistry
|September 1, 2015
Summary
Class II skeletal patterns are associated with significantly reduced airway dimensions compared to Class I. This study highlights a strong link between airway size and maxillomandibular relationships in craniofacial development.
Area of Science:
- Craniofacial anatomy
- Respiratory physiology
Background:
- Normal craniofacial growth depends on a healthy airway.
- Skeletal patterns significantly influence craniofacial development.
Purpose of the Study:
- To compare airway dimensions in Class I and Class II skeletal patterns.
- To investigate the association between airway characteristics and maxillomandibular relationships.
Main Methods:
- Computed tomography (CT) scans of 30 patients were analyzed.
- Patients were categorized into Class I (ANB ≤ 4.5°) and Class II (ANB ≥ 4.5°).
- Airway assessment was performed using Dolphin 3D software.
Main Results:
- A significant negative correlation was observed between the ANB angle and airway parameters.
- Class II subjects exhibited significantly smaller airway area and volume compared to Class I subjects.
Conclusions:
- A strong association exists between skeletal patterns and airway dimensions.
- Class II patients with higher ANB angles present with reduced airway size.
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