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Updated: May 8, 2026
10:23
Three-Dimensional Cephalometric Landmark Annotation Demonstration on Human Cone Beam Computed Tomography Scans
Published on: September 8, 2023
Evaluation of mandibular volume using cone-beam computed tomography and correlation with cephalometric values
Koshu Katayama1, Tetsutaro Yamaguchi, Mami Sugiura
1a Graduate student, Department of Orthodontics, School of Dentistry, Showa University, Tokyo, Japan.
The Angle Orthodontist
|August 30, 2013
Summary
Mandibular bone volume did not significantly differ across skeletal malocclusion classes. Further 3D analysis of the mandible is crucial for understanding maxillofacial morphology beyond traditional cephalometrics.
Area of Science:
- Dentistry
- Orthodontics
- Anthropology
Background:
- Skeletal malocclusion affects maxillofacial morphology.
- Cephalometric analysis is a standard diagnostic tool.
- Understanding mandibular bone volume is important for treatment planning.
Purpose of the Study:
- To investigate the association between maxillofacial morphology and mandibular bone volume in patients with skeletal malocclusion.
- To compare mandibular bone volume across different skeletal malocclusion classes.
- To explore correlations between mandibular volume and cephalometric parameters.
Main Methods:
- 118 adult Japanese subjects (58 males, 60 females) were analyzed.
- Skeletal malocclusion was classified into Classes I, II, and III using cephalometric analysis (ANB angle).
- Cone-beam computed tomography (CBCT) and 3D software were used to measure mandibular volume.
Main Results:
- No significant differences in mandibular volume were found among skeletal Classes I, II, and III.
- No significant correlations were observed between mandibular volume and ANB, SNB, or mandibular plane angles.
- Limited correlations were found between mandibular volume and gonial angle or specific cephalometric distances.
Conclusions:
- Mandibular bone volume does not significantly vary across major skeletal malocclusion types.
- Cephalometric analysis alone is insufficient for a comprehensive understanding of 3D maxillofacial morphology.
- High-resolution 3D analysis of mandibular dimensions is recommended for accurate assessment.
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