Related Experiment Videos
Alveolar and skeletal dimensions associated with lower face height
S H Beckmann1, R B Kuitert, B Prahl-Andersen
1Department of Orthodontics, ACTA, Amsterdam, The Netherlands.
Summary
Longer lower face height in adults is linked to larger maxillary bone areas and a smaller mandibular alveolar index. This suggests a narrower jaw shape in individuals with taller lower faces.
Area of Science:
- Dentofacial orthopedics
- Cephalometric analysis
- Anthropometry
Background:
- Facial height and bone structure are crucial in orthodontics.
- Understanding these relationships aids in diagnosing and treating skeletal discrepancies.
- Previous research has explored facial morphology but detailed bone structure correlations require further investigation.
Purpose of the Study:
- To investigate the association between lower face height and the structural characteristics of the frontal alveolar and basal bone.
- To analyze cephalometric measurements of the maxilla and mandible in relation to facial height.
- To determine correlations between lower face height and specific bone dimensions and indices.
Main Methods:
- Lateral cephalograms were analyzed from 460 untreated adults.
- Measurements of anterior alveolar and basal bone areas and dimensions were recorded.
- A mandibular alveolar index was calculated, and subjects were grouped by lower face height.
Main Results:
- Increased lower face height correlated with larger maxillary alveolar and basal bone areas.
- A larger lower face height was associated with a smaller mandibular alveolar index.
- Correlations between lower face height and maxillary alveolar index, and mandibular alveolar/basal area were low.
Conclusions:
- Longer lower face height in adults is associated with a larger maxillary alveolar and basal bone area.
- Individuals with longer lower faces tend to have a narrower mandibular symphysis shape rather than increased volume.
- These findings contribute to understanding skeletal variations and their impact on facial structure.