3M Unitek Gurin Finger Spring, Banded or Unbanded
A finger spring used for individual tooth movement, working on either a banded or unbanded tooth to apply a light, targeted directional force.
The Gurin Finger Spring is a wire auxiliary attached to a removable or fixed orthodontic appliance to move a single tooth in a targeted direction, most often used during interceptive or early phase treatment where one or a small number of teeth need individual correction rather than the full arch mechanics of a fixed appliance.
It can be used on either a banded tooth, where the spring engages a band placed on that specific tooth, or an unbanded tooth, applying force more directly against the tooth surface depending on the appliance design and the clinician's preferred technique. This flexibility makes the Gurin Finger Spring a versatile auxiliary for removable appliance therapy, where individual tooth movements are frequently planned into the appliance design rather than relying solely on a fixed archwire system.
Because the spring applies a light, continuous push, it is suited to gentle tooth movement over an extended period rather than rapid repositioning, matching the pace typically appropriate for early treatment in a growing patient. Orthodontic labs and practices that fabricate removable appliances with individual tooth movement features keep components like this on hand as a standard auxiliary for that type of appliance design.
