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[Assessment of occlusal vertical dimension using angles: a pilot study].
Niangou Zhou1, Liwei Zeng2, Jilan Jiao2
1Dept. of Stomatology, The 421 Hospital of Chinese PLA, Guangzhou 510318, China.
Summary
The center angle (CA) accurately quantifies occlusal vertical dimension using cephalometric radiographs. This method provides a reliable tool for clinical assessment in orthodontics.
Area of Science:
- Dentistry
- Orthodontics
- Cephalometrics
Background:
- Accurate evaluation of occlusal vertical dimension is crucial in orthodontics.
- Cephalometric radiography is a standard diagnostic tool in craniofacial analysis.
Purpose of the Study:
- To identify accurate quantitative methods for evaluating occlusal vertical dimension.
- To analyze craniofacial hard tissue landmarks using cephalometric radiographs.
Main Methods:
- 30 subjects with normal occlusions (aged 20-30) were included.
- Cephalometric radiographs were analyzed using Winceph 8.0 software.
- Craniofacial landmark points were identified and measured.
Main Results:
- No statistically significant difference was found between the mean center angle (CA) and lower angle (LA).
- A strong linear correlation (r=0.976) was observed between CA and LA.
- A regression equation (y = 0.298 + 0.997x) was established.
Conclusions:
- The center angle (CA) is a reliable quantitative method for assessing occlusal vertical dimension.
- CA can be effectively utilized in clinical practice for orthodontic evaluations.

