What does this research mean for the field?

Skeletal sagittal malocclusion is not significantly associated with articular eminence inclination or glenoid fossa roof thickness, although a small but significant right-left asymmetry exists in articular eminence inclination. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To evaluate the association between sagittal skeletal malocclusion based on ANB angle and temporomandibular joint morphology, including articular eminence inclination and glenoid fossa height, as well as bilateral symmetry.

August 19, 2026BMC Oral HealthOpen Access

Association of articular eminence inclination and glenoid fossa roof thickness with sagittal skeletal classes: a CBCT study

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Authors

MHMustafa Kenan Hürmüzlü SASinem COŞKUN ALBAYRAK

Discussion

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Overview

Cross-sectional CBCT analysis finds no significant link between sagittal skeletal malocclusion and TMJ morphology in dental patients, suggesting independent jaw joint development.

Key Points

To evaluate the association between sagittal skeletal malocclusion based on ANB angle and temporomandibular joint morphology, including articular eminence inclination and glenoid fossa height, as well as bilateral symmetry.
Analyzed CBCT scans of 123 individuals equally distributed into Skeletal Class I, II, and III groups (n = 41 each) based on ANB angle.
Measured bilateral articular eminence inclination (AEI) relative to the Frankfort horizontal plane and glenoid fossa height on sagittal TMJ sections to assess intergroup and side-to-side differences.
Right AEI was significantly higher than left AEI (48.0 ± 12.4° vs. 46.4 ± 12.7°, p = 0.033), with strong bilateral correlation (r = 0.764, p < 0.001) and moderate bilateral correlation for glenoid fossa height (ρ = 0.440, p < 0.001).
No statistically significant differences in AEI or glenoid fossa height were observed across skeletal classes (p > 0.05), although left AEI showed a non-significant trend toward lower values in Class III (p = 0.082).

Cite This Study

Hürmüzlü et al. (2026) studied this question.

synapsesocial.com/papers/6a8562eb03308d306e2d5e75 https://doi.org/10.1186/s12903-026-09609-4

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August 19, 2026BMC Oral HealthOpen Access

Association of articular eminence inclination and glenoid fossa roof thickness with sagittal skeletal classes: a CBCT study

View Full Paper

Ask AI

Bookmark

Authors

MHMustafa Kenan Hürmüzlü SASinem COŞKUN ALBAYRAK

Discussion

Member takes

Overview

Cross-sectional CBCT analysis finds no significant link between sagittal skeletal malocclusion and TMJ morphology in dental patients, suggesting independent jaw joint development.

Key Points

To evaluate the association between sagittal skeletal malocclusion based on ANB angle and temporomandibular joint morphology, including articular eminence inclination and glenoid fossa height, as well as bilateral symmetry.
Analyzed CBCT scans of 123 individuals equally distributed into Skeletal Class I, II, and III groups (n = 41 each) based on ANB angle.
Measured bilateral articular eminence inclination (AEI) relative to the Frankfort horizontal plane and glenoid fossa height on sagittal TMJ sections to assess intergroup and side-to-side differences.
Right AEI was significantly higher than left AEI (48.0 ± 12.4° vs. 46.4 ± 12.7°, p = 0.033), with strong bilateral correlation (r = 0.764, p < 0.001) and moderate bilateral correlation for glenoid fossa height (ρ = 0.440, p < 0.001).
No statistically significant differences in AEI or glenoid fossa height were observed across skeletal classes (p > 0.05), although left AEI showed a non-significant trend toward lower values in Class III (p = 0.082).

Cite This Study

Hürmüzlü et al. (2026) studied this question.

synapsesocial.com/papers/6a8562eb03308d306e2d5e75 https://doi.org/10.1186/s12903-026-09609-4

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