Hilgers Pendex Appliance

The Pendex Appliance is used to distalize the molars and expand the arch simultaneously. Effective arch development is achieved with .032 TMA wire embedded in acrylic, an expansion screw, and rests on the premolars. It produces a wide swinging arc of force from the midline of the palate to the upper molars producing a pendulum motion of the spring. An adjustment loop can be added to the spring to aid in rotation of the molars. Lingual sheaths are spot welded onto the band and can be provided by the lab.