[Therapeutic immediate denture, class II].

Without posterior support and because of dysfunction many people have very loose joints: their condyles are in a most retruded and downward situation. The occlusion cannot be stable in this relationship. The most retruded clinical position should not be used for prosthetic restoration. We must establish a therapeutic centric occlusion more anteriorly without increasing the vertical dimension. The amount of anterior condylar repositioning is determined by viewing the original TMJ tomographs. The position and the orientation of a normal occlusal plane can only be accurately determined by cephalometric analysis. This good occlusal scheme programmes the muscle coordination and maintains the anterior mandibular position.