Cross-sectional analysis shows TMDs relate to greater head-shoulder angle asymmetry and forward head posture.
The aim of the study was to evaluate the effect of TMDs on craniocervical posture by assessing head-shoulder angle asymmetry and craniovertebral angle (CVA). A cross-sectional study involving individuals with and without clinical signs and symptoms of temporomandibular joint disorders. Eighty-two participants were divided into a test group (n = 41) with TMD signs and a control group (n = 41). TMDs were assessed using a structured questionnaire and the Diagnostic Criteria/TMD (2014) criteria. Postural evaluation included photographic analysis of head-shoulder angle asymmetry using GNU Image Manipulation Program software and CVA measurement using a goniometer. Independent t-tests, Mann-Whitney U-tests, and Spearman's correlation. FHP was more prevalent among participants with TMD (57.5%), with a mean CVA of 49.37° ± 3.90° compared to controls (25%), which was statistically significant (P < 0.05). The mean asymmetry in head-shoulder angle was 5.62° ± 1.32° in the TMD group and 1.03° ± 0.89° in the control group. TMDs are associated with increased head-shoulder asymmetry and FHP. These findings highlight the importance of postural assessment in TMD management.
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Shetty et al. (2025) studied this question.
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