Figure 3. The expansion screws are placed on the model above the Essix appliance andthe buccal vestibule is boxed out with baseplate wax

From

Hybrid Removable Essix Appliance for Molar Uprighting: A Case Report

Mohammed Riad Yehya

International Journal of Dental Sciences and Research. 2018, 6(4), 95-99 doi:10.12691/ijdsr-6-4-4