Table 1.
Clinical signs and symptoms were evaluated and defined according to the Okeson.2
| Sign and Symptoms | Definition |
|---|---|
| clicking | a single click sound by digital palpation of external ear-way at the opening of mouth |
| deviation | deviation of jaw to one side from midline with turn back to midline at the opening of mouth |
| deflection | deflection of jaw to one side without turn back to midline at the opening of mouth |
| limitation (hard-end-feel) | mouth opening limited at 25–30 mm (rotational amount) |
| lateral palpation of TMJ | tenderness at condylar head to manuel palpation |
| tenderness of MM | tenderness at any region of entire body of muscle |
| tenderness of TM | tenderness at any region of entire body of muscle |
| tenderness of PSM | tenderness at any region of entire body of muscle |
| tenderness of LP | tenderness at any region of entire body of muscle |
| tenderness of MP | tenderness at any region of entire body of muscle |
| occlusion | categorized into class 1, 2 and 3 according to the first molars relationship for left and right sides |