Orthodontic treatment of the patient with severe teeth attrition was performed with the provisional restorations to recover occlusal vertical dimension. The increase in VDO causes posterior mandibular rotation and the increase in overjet. The overjet correction is one of the main goals of the orthodontic treatment in these patients. The anterior mandibular position was obtained at the end of orthodontic treatment. Condylar positions were assessed immediately after the bite raising procedure and after the completion of treatment. Both CBCTs of the temporomandibular joints and the Joint vibration analysis (JVA) were performed. Coronal views of the CBCTs of TMJs and zoomed vibration views of the JVA of TMJs are essential in assessment of the condylar instability.
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