SELF LIGATION www.speedsystem.com How does this mode of action differ from that of other appliances? SPEED Spring Clip activated by archwire SPEED provides precise corrective tooth control Conventional Twin edgewise brackets are passive in their mode of action. Unable to independently affect and control tooth movement, they rely on ligatures to secure them to the archwire. These appliances are wholly dependent on the archwire for their control. The inherent limitations imposed by this “ligature” to “archwire” relationship ultimately compromise the treatment and clinical efficiency of the appliance. Conventional “tie-wing” appliances depend on biodegradable elastomeric ligatures for their control. This design suffers from inherent limitations. Undersized wires used during initial alignment, and later in treatment to reduce friction during tooth translation, are free to roam in the archwire slot; control is therefore sacrificed. Attempting to maximize control through the use of full size wires increases friction thereby inhibiting treatment progress. The above visual, taken from Dr. Hanson’s 1983 Great Lakes Society presentation, shows how elastomeric donuts degrade during a single treatment appointment. Undersized Wire Reduced Friction - Poor Control Full Sized Wire Full Control - High Friction The SPEED Appliance provides clinicians with a predictably low frictional drag while maintaining the ultimate in 3-dimensional tooth control. By employing a resilient Super-Elastic Spring Clip to entrap and interact with the archwire, SPEED ensures a friction reduced “metal to metal” sliding contact while providing the ultimate in 3-dimensional control. This unique feature is synergistically enhanced by the appliance’s uniquely configured slot design and highly polished finish. 8
RkJQdWJsaXNoZXIy Nzg3Njc4