Dental Orthodontic Appliances , Z Spring Orthodontic Appliance
A useful variation of the finger spring where a second limb is
formed with a second coil.
It consists of 2 helices of small diameter can be made for 1 or
The spring is positioned perpendicular to the palatal surface of
the tooth with a long retentive arm. The Z-spring needs to be boxed
in wax prior to acrylization.
• to move one or more teeth in the same direction E.g. proclining 2
or more upper incisors for the correction of anterior tooth
• To correct mild rotation if only one helix is activated.
Activation: By opening both the helices up to 2 mm at a time.