The Fixed Pendulum Appliance (FPA) is comprised of rings (bands) around the maxillary (upper) permanent first molar teeth, stainless steel occlusal rests (wires) that sit passively in the grooves of the middle teeth, composite resin (dental glue made from the same material as sealant or filling material) that helps to anchor the appliance, an acrylic (plastic) frame that sits on the roof of the mouth, and springs that attach to the bands.
