Anterior and Posterior Occlusal Plane Inclinations Differ Between Class II and Class III Mixed Dentitions-A Retrospective Cross-Sectional Study of a Morphological Characteristic.

ABSTRACT: Background: To investigate if the sagittal inclinations of anterior occlusal plane (AOP) and posterior occlusal plane (POP) differ between skeletal classes II and III in the mixed dentition period. Methods: Retrospective analysis of cross-sectional lateral cephalometric radiograph data of 61 children with skeletal class II and 60 children with skeletal class III (average age 8.4 ± 1.5 years). We measured the inclinations of AOP and POP to the Frankfort horizontal (FH) and the sella-nasion line (SN). Angles FH-AOP, FH-POP, SN-AOP, and SN-POP were compared between both groups using model-based ANOVA F tests and quantile regressions. Results: The differences in means between the groups came to 1.3° ± 5.1 (FH-AOP), 1.8° ± 4.6 (FH-POP), 2.6° ± 5.3 (SN-AOP), and 5.5° ± 4.4 (

SUBMITTER: Celar A 

PROVIDER: S-EPMC12470786 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature