Issue link: https://www.massageandbodyworkdigital.com/i/68009
THE TEMPOROMANDIBULAR JOINT, PART 1 Think about it: the jaw hangs from the skull by soft tissue. While that lets the jaw be mobile, it also means that if those soft structures aren't coordinated and free, the movable jaw is easily pulled out of line, putting stress on its articulations. That makes the temporomandibular joints (TMJs) unhappy. In Images 1 and 2, note how much the mandible drops forward when opening. Notice also the mobility of the articular disk (in green)—it floats within the joint capsule and is positioned by articular membranes, which are continuous with the lateral pterygoid anteriorly, and the back of the joint capsule posteriorly. As the mandible slides forward, the disk (outlined in white in Images 3 and 4) is pulled into position by the articular membranes (thin zigzag lines). If the disk is overly compressed or displaced by tension, trauma, or misaligned movement, the joint gets irritated, which can eventually degrade the articular surfaces of the bones. Red indicates areas of highest stress. Images 1 and 2 courtesy of Primal Pictures. Used by permission. Images 3 and 4 created by Dr. J.W. DeVocht. Used by permission. visit massageandbodywork.com to access your digital magazine 111