The anterior Incline Plane has been used for many years to aid in the forward repositioning of the mandible for patients with a Class II tendency. Since the advent of modern functional appliances, e.g. Twin Blocks, Bionators and Ortho Correctors (to name a few), the Incline Plane has been relegated to the position of a maintenance appliance.

After correction of a patient’s Class II skeletal relationship, this appliance is used as a “reminder” to help the patient function in the forward position during initial retention. Lingual loops have been added to keep the tongue from inhibiting bite closure in the bicuspid region.