Related Experiment Video
Updated: Jan 20, 2026
Heritability
Heritability of the pharyngeal airway volume and dimensions as assessed from siblings with overt malocclusions
Riyad Al-Qawasmi1, Sade Parsons1, Leah Wetherill2
1Department of Orthodontics, University of Detroit Mercy School of Dentistry, 2700 Martin Luther King Jr. Blvd Detroit, MI 48208, USA.
Objective:
To quantify the relative contributions of genetic and environmental factors to airway volume and dimensions in orthodontic patients.
Materials And Methods:
One hundred and twenty-five siblings from 57 families were selected. Cone beam computed tomography scans were taken as part of the orthodontic records and the Dolphin3D © imaging software was used to determine airway volume and dimensions. SOLAR program was implemented to calculate heritability.
Results:
The heritability of the airway volume was negligible but increased significantly from 5% to 72% (95% confidence interval was 27% to 100%) when anterior-posterior (AP) dimension was controlled in the calculating model.
Conclusion:
The capacity to maintain, rather than having proper AP dimension of the airway, seems to be the most critical mark of a proper airway volume.
Related Concept Videos
Heritability
Acute Pharyngitis
Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice.
Classification
Acute pharyngitis can be categorized based on its underlying cause:
Chronic Pharyngitis
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...
Relationship with Other Adult Family Members and Siblings
10:02Visualization and Analysis of Pharyngeal Arch Arteries using Whole-mount Immunohistochemistry and 3D Reconstruction
08:26The Rigid Tube as an Alternative in Controlling the Problematic Airway

