Figure 5From: Surgically assisted rapid palatal expansion with tent screws and a custom-made palatal expander: a case report The appliance was activated 2 times a day (1 activation = + 0.25 mm) for 14 days for a total of 7 mm. After expansion was complete and the screw was immobilized, the appliance acted as a fixed retainer for a period of 6 months. A. 2 weeks After surgery B. 6 months after surgery. Palatal expander was removed and TPA appliance was placed for retention. C. 1 years after surgery D. 2 years after surgery.Back to article page