ArticleBMC oral health2025
Condylar alteration in three subtypes of temporomandibular disorder based on U-HRCT: a cross-sectional study.
Article in BMC oral health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- TMJ MRI structural features and horizontal condylar angle across a seven-type disc-condyle classification.BMC oral health · 2026Article
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12 authors.
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Abstract
backgroundTo investigate osseous remodeling pattern of the condyle across different subtypes of temporomandibular disorder (TMD) using 3D model generated from ultra-high-resolution CT (U-HRCT).
methodsThis single-center, retrospective study enrolled patients with unilateral TMD who underwent both U-HRCT and magnetic resonance imaging from November 2021 to June 2024. Temporomandibular joints (TMJs) were categorized into three TMD subtypes: disc displacement with reduction (DDWR), disc displacement without reduction (DDWoR), and osteoarthritis (OA). Condylar morphology parameters, including length, width, height, total volume, anterior volume, and posterior volume, were measured on 3D model derived from U-HRCT images by two independent observers. Affected and unaffected TMJs of the same patient were compared using paired sample t-test, and inter-group differences among TMD subtypes were assessed using two-way ANOVA with Bonferroni correction.
resultsA total of 115 participants (mean age 34.6 ± 13.4 years, 103 females) were included. Compared with unaffected side, affected TMJ showed significantly smaller height (DDWR, DDWoR), width (OA), and volumetric data (all groups). Inter-group comparison of affected TMJ revealed significant differences in condylar height and total volume between DDWR and OA (p = 0.007 and 0.001, respectively). The posterior volume was the lowest in OA (399.71 ± 123.43 mm3), followed by DDWoR (517.51 ± 179.30 mm3) and DDWR (542.11 ± 153.76 mm3), while the anterior volume was smallest in DDWoR (309.49 ± 107.27 mm3), followed by OA (336.92 ± 128.81 mm3) and DDWR (361.50 ± 110.03 mm3).
conclusionU-HRCT-based 3D models reveal condylar osseous remodeling patterns across TMD subtypes, and posterior volume may serve as a potential osseous remodeling indicator to differentiate TMD subtypes.
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