Fig. 9

For an initial assessment of bruxism and square jaw, with tests such as sonography, skull PA, and panorama as seen above, one can examine the degree of contraction or hypertrophy of masseteric muscle of a patient with bruxism or square jaw, and able to identify the temporomandibular joint disorder, determine occlusal relationships, and diagnose pathological diseases. An average of 10 mm or more is determined as masseteric hypertrophy