WHEN THE CENTRIC SCREWS ARE LOOSENED, A SPRING LOCATED IN THE CENTRE OF THE UPPER JAW PERMITS MOVEMENT AND RETURN TO THE ORIGINAL POSITION. THE INCLINE OF THE CONDYLAR PATH IS 25°. THE DISTANCE BETWEEN THE CONDYLES IS 10.5 CM WHILE THE DISTANCE BETWEEN THE CONDYLE AND LOWER CENTRAL INCISOR IS 11.2 CM. THERE IS A 25° BONWILL TRIANGLE TO THE TOTAL SURFACE OF THE OCCLUSAL PLANE. THE DISTANCE BETWEEN THE UPPER & LOWER JAW IS 8 CM.
THE UPPER JAW MAINTAINS A HORIZONTAL POSITION EVEN WHEN THE INCISOR ROD IS REMOVED. IT CAN ALSO BE INCLINED AT 45° TO THE REAR FOR CONVENIENCE IN MOUNTING THE MODEL. THIS ARTICULATOR COMES WITH 2 EASILY REMOVABLE, HEAT RESISTANT PLASTIC MOUNTING PLATES TO PERMIT WORKING WITH MORE THAN ONE MODEL AT A TIME