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Published: 2026-03-09
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DOI: https://doi.org/10.52852/tcncyh.v199i2.4774
Issue
Vol. 199 No. 2 (2026)
Section
Các bài báo
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Thảo, N. L. T. (2026). Characteristics of the anterior and posterior occlusal planes in skeletal class II and class III patients in the permanent dentitions. Journal of Medical Research, 199(2), 259-267. https://doi.org/10.52852/tcncyh.v199i2.4774

Characteristics of the anterior and posterior occlusal planes in skeletal class II and class III patients in the permanent dentitions

Nguyen Le Thu Thao

Main Article Content

Abstract

This study aimed to evaluate the characteristics of the anterior occlusal plane (AOP) and posterior occlusal plane (POP) in patients with skeletal Class II and Class III malocclusions in the permanent dentition. A descriptive cross-sectional study was conducted on 80 digital lateral cephalometric radiographs of untreated patients. The inclinations of the occlusal plane (OP), AOP, and POP were measured using WebCeph software with the Sella-Nasion and Frankfort horizontal planes as reference planes. The results showed that SN-AOP and SN-POP values were significantly higher in the skeletal Class II group than in the Class III group, with POP demonstrating the most pronounced intergroup difference (p < 0.001). When the Frankfort horizontal plane was used as the reference, FH-POP also showed a statistically significant difference between the two groups. In conclusion, occlusal plane inclination, particularly that of the posterior occlusal plane, is closely associated with skeletal Class II and Class III patterns; dividing the occlusal plane into AOP and POP provides a more accurate description of anteroposterior dentoskeletal morphology.

Article Details

Keywords

Occlusal plane, anterior occlusal plane, posterior occlusal plane, skeletal Class II, skeletal Class III, cephalometric analysis

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