3M Unitek MIA Quad Helix, Preformed Palatal Appliance
A preformed palatal quad helix appliance designed for easy removal and reinsertion, used for arch expansion in upper or lower arch treatment.
The MIA, or Mobile Intraoral Arch, Quad Helix is a palatal and lingual appliance that combines the expansion mechanics of a traditional quad helix with the added convenience of being removable and reinsertable by the clinician during treatment, rather than remaining permanently cemented for the full course of therapy.
This mobility gives the orthodontist greater flexibility and control over the course of treatment, allowing adjustments or removal for hygiene checks without needing to fully recement the appliance each time. It is available in a range of preformed sizes covering both upper and lower arch applications, and comes with either straight or curved retention sheaths depending on how the appliance needs to engage the supporting bands.
Quad helix appliances of this kind are most often used for palatal expansion in growing patients or for correcting posterior crossbite, applying a gentle continuous force through the coiled helix design. The extensive list of catalog numbers in this listing reflects the different arch sizes offered, letting practices select the size that matches a given patient's arch width rather than adjusting a single generic size.
