Abstract: An orthodontic appliance is adapted for treating overjet in a patient having an upper jaw, a lower jaw, lower teeth in the lower jaw and upper teeth in the upper jaw which are abnormally forward of the lower teeth. The teeth have lingual sides and labial sides. The appliance includes an upper attachment device which is configured to be secured to at least one of the upper teeth on each side of the upper jaw. A lower attachment device has a pair of lower connectors. Each lower connector is configured to be secured to at least one of the lower teeth of the patient on each side of the lower jaw. A rigid, wire-like lingual bow is extendable between the lower connectors about the lingual sides of the lower teeth. A rigid, wire-like labial bow is extendable between the lower connectors about the labial sides of the lower teeth. The bows are connected to the lower connectors. A bite jumping device interconnects each side of the upper attachment device to a corresponding side of the lower attachment device.