Fig. 11

Oblique sagittal T1-weighted images represent Stage IV, showing a normal disk-condyle-fossa relationship (yellow arrow) in closed (A) mouth position with posterior disk displacement (yellow arrow) in open (B) mouth position. Oblique sagittal T1-weighted images represent Stage IV, showing anterior disk displacement (yellow arrow) in closed (C) mouth position with posterior disk displacement (yellow arrow) in open (D) mouth position.