SPEED Users Guide

22 The combined effect of the initial light multi-stranded Supercable™ archwire, the wide interbracket span between the narrow SPEED brackets, and the energy storing capability of the Spring Clip, greatly increases the range of appliance activation. A Supercable™ sectional may be used for initial alignment prior to the engagement of a full archwire. If necessary, stainless steel coil or tubing is used to reinforce extraction spaces once alignment will allow engagement of a full archwire. Alternatively, solid Nickel Titanium archwires may be used during initial alignment and leveling. Care should be taken when choosing such wires to avoid brands of wires that impart excessive force. Attention should be paid to the amount of force imparted by the wire in the ‘Unloading’ phase at mouth temperature (approximately 37°C), as this is the force that would be imparted to the dentition. Numerous studies have been published comparing the unloading force of various commercially available archwires. One such study (Berger J.L., Waram T., Force Levels of Nickel Titanium Initial Archwires, J. Clin. Orthod. 2007; 41:(5): 286-292) compares the loading and unloading forces of more than 40 Nickel Titanium archwires. • When the malalignment is not severe, the first archwire used is usually an .018 Supercable™ wire or .016 solid Heat Activated (HA) Nickel Titanium wire. • When permitted by alignment, a continuous super elastic archwire is inserted into all attachments. The specially shaped nickel-titanium SPEED Wire™ is ideal for final aligning and leveling. Its unique shape and mechanical properties ensures full cooperation between the archwire and the SPEED brackets thus providing optimal tooth movement. • Occasionally, stainless steel tubing or SPEED Protector Coil may be used to reinforce a long span of wire at extraction sites. This reinforcement reduces the likelihood of accidental archwire deformation.

RkJQdWJsaXNoZXIy Nzg3Njc4