1992 Volume 4 Issue 3 Pages 347-357
Video-fluorography was performed on 156 temporomandibular joints just before arthrography. Condylar movements during jaw opening, closing and protruding were recorded on video cassette. The parthway and position of the mandibular condyle were analyzed in each frame and 6 characteristic patterns of the opening pathway were found. The patterns of movements and the arthrographic findings were compared. In 16 out of 22 joints (73%) with anterior disk displacement with reduction, the opening pathway of the condyle showes “B” type movementthe velocity decreased at the midpoint of condylar translation. In “C” type movement-the condylar translated with minimun rotation at the early of opening, and rotation occurred at the late stage of the opening, 26 out of 29 (90%) showed soft tissue perforation. Video-fluorography might be a significant methods for the prediction of temporomandibular soft tissue conditions.
