Fig. (3) Simulation of disc-condyle movement of TMJs with ADDWR using Cine-MRI. FIESTA parameters, TR milliseconds/TE milliseconds=134.8.0/13.8. (A) In the closed-mouth position, the anterior and posterior bands of the disc can be clearly identified and the disc was slightly deformed. (B) At an open-mouth position of 1.0 cm, there was onset of condylar rotation, and anterior disc displacement with reduction showed an abrupt change, with a back-to-normal disc-condyle relationship. (C) At an open-mouth position of 2.0 cm, condylar translation continued. (D) At an open-mouth position at 3.0 cm, condylar translation occurred. (E) At an open-mouth position of 4.0 cm, there was a rotational movement with a very short forward translation of the condyle. (F) At an open-mouth position of 5.0 cm (maximum mouth opening), there was a predominantly rotational movement, and the condyle was located slightly before the apex of the eminence.

Back to Article