This type of RPE is ideal when dealing with a narrow or small palate. Because of the size of screw the doctor has more options for placement. The featured appliance is constructed with a 13mm screw and 0.40 lingual wires for
E-Arch utilizes a Niti spring that can be activated after insertion to exert a even force over time for lower expansion. This applince requries no compliance buy patent and must be activated by the doctor.
E-Arch, Expansion, Fixed,
Fixed Lower Expander or (Flea) is constructed using a 13mm screw and 0.036 rest on the 4s.
Expansion, Fixed, Flea,
This type of expansion appliances incorporates a 11mm acrylic screw screw embedded into an acrylic button which depth starts approximately 5 mm from the gingival margin. The wire used to connect the acrylic structure to the bands is 0.036. The
Expansion, Fixed, RPE,
The cottonwood standard for the quad helix is 0.036 stainless steel wire bent approximately 2 mm from he tissue. Variations of this appliance include…. 0.032 stainless steel wire. 0.040 stainless steel wire ( the thicker wire needs to be placed