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  • Title: Positional and dimensional TMJ characteristics in different temporomandibular disorders: A cross-sectional comparative study.
    Author: Aboalnaga AA, Amer NM, Alhammadi MS, Fayed MMS.
    Journal: Cranio; 2024 Sep; 42(5):611-619. PubMed ID: 35061575.
    Abstract:
    OBJECTIVE: To investigate the morphological and positional temporomandibular joint (TMJ) characteristics of different temporomandibular disorders (TMDs). METHODS: One hundred forty-three TMD patients were divided into three groups: Group 1: Myalgia (M), Group 2: Disc displacement with reduction (DDWR), and Group 3: Disc displacement without reduction (DDWOR). Three-dimensional positional and dimensional parameters of the TMJ, including mandibular fossa, condyle, and TMJ spaces were evaluated using cone beam computed tomography (CBCT). The significance level was p < 0.05. RESULTS: Mandibular condyles were significantly positioned in more vertical, posterior, and medial directions, with the reduced condylar width in the DD groups (p < 0.001). Anterior joint space was significantly higher in the DDWR group than the myalgia group; the superior joint spaces were more reduced in DD groups than the myalgia group. CONCLUSION: Patients diagnosed with disc displacement showed significantly different condylar positions and joint spaces compared to the myalgia group in a skeletally comparable sample.
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