LVI Functional Holding Arch (FHA)
The LVI Functional Holding Arch is a "fixed-removable" appliance used to obtain arch expansion and proper tip, torque, and rotation of molars. It is called "fixed-removable" because while it is fixed for the patient, the appliance fits into vertical sheaths on the molar bands, making it removable for the doctor and resulting in easy adjustment of the appliance. The appliance can be easily removed from the vertical sheaths with a scaler. This versatile appliance can also be used as a space maintainer or to create cross-arch anchorage.
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