Molar distalisation by pendulum appliance

The concept of ‘distal driving’ of maxillary posterior teeth has a long orthodontic history.1 Class II malocclusions, which are the most numerous among orthodontic cases, can be resolved by several procedures.1 One involves the distal movement of the maxillary molars to establish class I molar relationships. The premolars and canines are then sequentially moved posteriorly to class I positions, and finally the incisors are aligned and/or retracted.2 This version of the appliance is called as ‘Pend-X’. The pendulum springs are so efficient in expanding and …