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A proposed linear skeletal distance to predict occlusal vertical dimension: A cephalometric study
Mohammed Nasser Alhajj1, Ammar A Daer2
1Postgraduate student, Department of Prosthodontics, Faculty of Dentistry, Thamar University, Dhamar, Yemen.
The Journal of Prosthetic Dentistry
|April 25, 2017
Summary
The nasion to sella distance can aid in estimating occlusal vertical dimension in men. This skeletal measurement showed a significant correlation in males but not females for oral rehabilitation.
Area of Science:
- Dentistry
- Orthodontics
- Oral Rehabilitation
Background:
- Establishing correct occlusal vertical dimension is crucial for facial esthetics in oral rehabilitation.
- Accurate occlusal vertical dimension impacts patient outcomes and satisfaction.
Purpose of the Study:
- To evaluate a proposed linear skeletal distance for predicting occlusal vertical dimension.
- To assess the reliability of the nasion-sella (Na-Se) distance in estimating occlusal vertical dimension.
Main Methods:
- Retrospective analysis of 93 digital cephalometric radiographs (51 men, 42 women).
- Measurement of nasion-sella (Na-Se) and anterior nasal spine-menton (ANS-Me) distances using ImageJ software.
- Statistical analysis using Pearson correlation, regression, and t tests (α=.05).
Main Results:
- A significant positive correlation (P<.001) was found between Na-Se and ANS-Me distances in men.
- No significant correlation was observed between these distances in women (P=.058).
Conclusions:
- The nasion-sella (Na-Se) distance can serve as an additional tool for estimating occlusal vertical dimension in men.
- This method may be population-specific and requires further validation for women.
