DR. CHENG LUN WANG, DR. KEVIN LEE, & DR. YAN LIU CERTIFIED SPECIALISTS IN ORTHODONTICS

Quad Helix

Quad Helix

The quad helix applies slow pressure to expand the upper jaw. The pressure is applied through the widening of the appliance by adjusting the wires. The appliance is usually left in place for a while after the desired expansion is achieved and acts as a retainer.

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