SELF LIGATION www.speedsystem.com How does the SPEED Appliance reduce friction? What force levels are most effective when using the SPEED System™? This space was opened with 15 grams of force. No tipping occurred. Light force levels are ideal for use with the SPEED System™. This is true when selecting any type of force application (i.e. archwires, elastomerics, auxiliaries, etc.) The efficiency of such light force levels can be maximized by allowing archwires 8 to 10 weeks to express themselves. Upper and lower archwire changes can be alternated at 5 or 6 week intervals. The synergistic effect of utilizing threshold forces with an appliance that imparts low frictional resistance results in minimal stress transmitted to the supporting tissues. This is verified by an absence of root blunting in post-treatment radiographs. SPEED Spring Clip activated by archwire The SPEED Appliance provides clinicians with predictably low frictional drag while maintaining the ultimate in 3-dimensional tooth control. Laboratory studies have supported the clinical observation that SPEED, like all self-ligating brackets, imparts little friction when translated along an archwire. 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. 12 SPEED’s super-elastic Spring Clip and highly polished slot ensure predictable and light frictional resistance Grams Conventional Twin I Conventional Twin II Damon SPEED 0 30 60 90 120 150 146.9 g 78.4 g 15.5 g 15.9 g 1998 EJO Friction Study B. Melsen et al (.018 SS archwire in .022 slot)
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