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Using computerized cephalometrics to analyze the vertical dimension of occlusion
C L Edwards1, M W Richards, E J Billy
12nd Dental Company, Camp Lejeune, North Carolina.
The International Journal of Prosthodontics
|July 1, 1993
Summary
A new computer program for determining occlusal vertical dimension showed poor accuracy. The program
Area of Science:
- Dentistry
- Orthodontics
- Biomedical Engineering
Background:
- A novel computer program utilizes cephalometric analyses to determine occlusal vertical dimension (OVD).
- The program suggests adjustments to the incisal-pin position on articulated casts based on its analysis.
Purpose of the Study:
- To evaluate the accuracy of a computer program designed for determining occlusal vertical dimension.
- To compare the program's OVD measurements with clinically determined values.
Main Methods:
- Cephalometric radiographs were taken of 24 completely dentate male subjects with acceptable OVD.
- Measurements from cephalometric tracings were inputted into the computer program for analysis.
- Recommended incisal-pin adjustments were compared to the subjects' clinically determined OVD.
Main Results:
- The computer program recommended incisal-pin changes ranging from -11 mm to +25.3 mm.
- The mean recommended change across all tested methods was 8.4 mm.
- A low correlation was observed between the program's results and the clinically determined OVD.
Conclusions:
- The evaluated computer program demonstrates low accuracy in determining occlusal vertical dimension.
- Clinical validation is crucial for computer-aided diagnostic tools in dentistry.
- Further refinement of cephalometric analysis software is needed for reliable OVD determination.