EVALUATION OF MORPHOMETRIC ASSESSMENT AND DEGENERATIVE CHANGES OF TEMPOROMANDIBULAR JOINT IN SYMPTOMATIC AND ASYMPTOMATIC SUBJECTS USING CBCT – A COMPARATIVE ANALYSIS

Abstract: Background: The temperomandibular joint diseases have been associated with various predisposing factors. The assessment of joint spaces, articular eminence height and inclination and the shapes of condylar and glenoid fossa have been evidently proven to vary in patients with TMD’S. The advanced imaging techniques like CBCT have been employed to estimate these parameters. Objective: Aims and objectives: The aim of the current study is to investigate the condylar morphology, condylar and glenoid fossa shapes and assessment of joint spaces such as anterior, posterior,superior, lateral and medial spaces through CBCT slices in coronal and saggital planes. Methods: A crosssectional study will be planned with 80 joints in 40 patients will be assessed for the above parameters, the group I consisted healthy patients and group II those having temperomandibular joint diseases(TMD’s).The articular eminence height and inclination will be assessed on the midsagittal section. The condylar changes, shapes of the glenoid fossa and condyles as well the joint spaces will be assessed on the selected coronal and sagittal section. Results: Significant differences were observed between the TMJ disorder and control groups in condylar morphology, with a predominantly triangular shape in the TMJ group and an oval shape in controls (p < 0.001). Glenoid fossa morphology showed significant variation between groups, although an oval shape predominated in both (p < 0.005). Erosive changes of the mandibular condyle were more frequently noted in the TMJ group. Quantitative TMJ parameters—including articular eminence height and inclination, and superior, medial, lateral, anterior, and posterior joint spaces—showed highly significant differences between the TMJ and control groups (p < 0.001). No significant association was observed between condylar shape and TMJ morphometric parameters (p > 0.05). Glenoid fossa morphology showed no significant correlation with TMJ parameters except for articular eminence inclination (p < 0.05). Among condylar alterations, only the superior joint space demonstrated a significant association in the TMJ group (p < 0.01). Conclusion: The morphological parameters &degenerative changes of temperomandibular joint will be assessed . The current study will elucidate the relationship of assessment of temperomandibular joint morphology and and diagnosis of temperomandibular diseases pertaining to all the choosen para meters between the controlled and diseased subjects Keywords: Temporomandibular joint disorders (TMDs), Cone-beam computed tomography (CBCT), Condylar morphology, Glenoid fossa morphology, Articular eminence, Temporomandibular joint spaces.