quad helix appliance
n
A fixed, spring-loaded orthodontic appliance using four helix springs; used primarily to expand the maxillary dental arch.
A fixed, spring-loaded orthodontic appliance using four helix springs; used primarily to expand the maxillary dental arch.
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![]() | Dental Dictionary. Mosby's Dental Dictionary. Copyright © 2004 by Elsevier, Inc. All rights reserved. Read more |