Belussi Distalizer

This appliance was developed by Dr Ugo Belussi in 1997 and it is derived from 2 dis tali zing appliances: the Pendulum and the Distal jet.

This distalizer is constituted by:

1. A modified Nance button bound to the first premolars.

2. Two unilateral expansion screws. These are placed between the first molar and the first premolar and are

imbedded in acrylic as perpendicular to the occlusal plane as possible.

3. Two TMA distalizing springs (similar to the ones on the pendulum) that are inserted in the palatal sheaths

of the molars and the acrylic of the button of a modified Nance button.

During screw activation (2/4 of a turn per week) the distalizing springs are simultaneously set in action, and in this way the molar distalization is produced.

Dr Belussi recommends the alternate activation of the right and the left screw every 4 days, this means that

the same screw is activated every 8 days; the objective of this is to not to apply a lot of force on the palate,

avoiding irritation.