The NORD is a removable lateral expansion appliance used to correct a unilateral crossbite.
The Nord Crossbite is perfect for patients with a crossbite and whose median lines are deviated. This design is a unilateral palatal expansion appliance with two screws that must be activated at the rate of 0.025 mm twice a week. With a crossbite, the pad must be smooth to avoid interference with antagonistic teeth.