Joint Distraction and Condyle Advancement with a Modified Functional Distraction Appliance

When the disk of the temporomandibular joint is displaced anteriorly, a functional distraction appliance (FDA) is often helpful to gently distract the joint, allowing it to return to its normal physiology. This article describes the construction of a modified FDA and discusses its use in treatment procedures that bring about condylar advancement, thus helping the disk return to its normal position.