-24%
SAFETY TRACTION 450 G
SAFETY TRACTION 750 G
Navy blue. The force listed in each reference is the force exerted when the strip is at half its total extension. Has a maximum extension of 2.5 cm ? so when the strip is extended to 1.25 cm it exerts the force marked on the traction module. Each traction's safety mechanism liberates the spring under a force of 1.8 kg. When the traction is cut correctly, the mechanism is released if the patient tries to take the facial archwire out of the mouth.