Hale L R
Br J Orthod. 1987 Jul;14(3):169-73. doi: 10.1179/bjo.14.3.169.
Treatment of the severe Class II division 2 malocclusion is difficult whatever appliance system is used. A small auxiliary, for use with the Begg appliance, is described. This enables torque and intrusive forces to be delivered to the upper central incisors, using High Pull Headgear. A case treated using this device is shown, and the changes brought about are demonstrated.