Related Experiment Videos
Relationship between jaw muscle volume and craniofacial form
1Department of Clinical Dental Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, Canada.
Journal of Dental Research
|May 1, 1989
Summary
This study found that jaw muscle volume in adult males with Obstructive Sleep Apnea correlates with specific craniofacial structures, influencing facial planes and angles.
Area of Science:
- Craniofacial anatomy
- Sleep medicine
- Biomechanical engineering
Background:
- Obstructive Sleep Apnea (OSA) is a condition affecting breathing during sleep.
- Craniofacial morphology is hypothesized to influence OSA.
- Jaw muscle function's role in OSA is not fully understood.
Purpose of the Study:
- To investigate the relationship between craniofacial form and jaw muscle volume in adult males with OSA.
- To quantify masseter and medial pterygoid muscle volumes.
- To correlate muscle volumes with craniofacial variables.
Main Methods:
- Utilized CT scans from 25 adult male OSA patients.
- Performed 3D reconstructions to calculate masseter and medial pterygoid muscle volumes.
- Analyzed lateral cephalometric radiographs for craniofacial variables.
Main Results:
- No significant correlation found between apnea severity and jaw muscle volume.
- Masseter muscle volume negatively correlated with mandibular plane and gonial angle.
- Larger jaw muscle volumes associated with flatter mandibular/occlusal planes and smaller gonial angles.
Conclusions:
- Jaw muscle volume is linked to specific craniofacial dimensions in OSA patients.
- Craniofacial structure may influence jaw muscle development and function in OSA.
- Further research is needed to clarify the functional implications.