The fan-type expansion appliance is a removable slow-expansion device that allows for anterior or posterior widening of the upper arch, much like a fan opening.

• Acrylic
• Stainless steel wires
• Fan-shaped expansion cylinder with hinge

• Accessories

• Top model
• Bottom model
• Wax articulated in centric occlusion with a minimum thickness of 2mm

The ARCADE fan-shaped expander is ergonomic because the hooks are checked so that they do not interfere with occlusion.