The Bi-Helix Expander is a lower appliance designed to use preformed stainless steel wire to gain arch development while simultaneously up righting the molars due to use and position of the helix coils.
AOA Lab is a full-service orthodontic lab, specializing in the fabrication of orthodontic appliances including most metal orthodontic appliances, clear removable aligners, as well as acrylic based orthodontic appliances, and orthodontic space maintainers. We also feature Indirect Bonding Services for both Labial and Lingual braces. Our appliance selections also offer a full line of custom fabricated removable retainers and fixed or bonded retainers. AOA Laboratory is a full-service lab offering 3D digital orthodontic services including model printing. AOA Access provides our practices with an on-line order entry portal where appliance prescriptions can be completed online and submitted to our order entry system for your Herbst, AdvanSync, Mara, Retainers, Expanders, Positioners, Sleep Apnea Appliances, Splints and many other appliances. At AOA we are focused on quality, customer service and your practice.