Related Experiment Videos
Vertical height differences in subjects with severe dental wear
1University of Newcastle Upon Tyne, UK.
European Journal of Orthodontics
|December 1, 1993
Summary
Severe dental wear impacts vertical facial dimensions. While total face height remains consistent, upper face height increases and lower face height decreases, with dento-alveolar changes compensating for tooth loss.
Area of Science:
- Dentistry
- Orthodontics
- Anthropology
Background:
- Severe dental wear can significantly alter oral structures.
- Understanding its effect on facial dimensions is crucial for diagnosis and treatment.
Purpose of the Study:
- To investigate differences in vertical facial dimensions in individuals with severe dental wear compared to a control group.
- To analyze the relationship between tooth wear, facial height, and incisor position.
Main Methods:
- Lateral skull radiographs were taken of 35 subjects with severe dental wear and 40 controls.
- Measurements of total face height, upper face height, and lower face height were recorded.
- Tooth length and overbite were assessed, and lower incisor position was analyzed.
Main Results:
- No significant difference in total face height (n-gn) was found between groups.
- The severe dental wear group exhibited greater upper face height and smaller lower face height.
- The wear group showed reduced tooth length, smaller overbite, and altered lower incisor position.
Conclusions:
- Dento-alveolar development and changes in lower incisor position compensate for vertical height loss due to severe dental wear.
- These adaptive mechanisms help maintain overall facial height despite significant tooth structure reduction.