The ligatures used with traditional appliances apply a heavy binding force to the archwire, greatly increasing frictional resistance. SPEED's design eliminates the need for ligatures, greatly reducing frictional resistance. This allows clinicians to move teeth with greater predictability using significantly less force.
A comparative study of conventional ligation and self-ligation bracket systems
- AJODO, Nov. 1994
Study findings:

• Frictional resistance with SPEED was 1/10 the frictional resistance of twin brackets utilizing elastomeric ligatures

• Frictional resistance of all Self-Ligating brackets was dramatically less than twin brackets with elastomeric ligation

• Between the Self-Ligating brackets tested, there was very little difference in frictional resistance
    Choose a link to hear from Dr. Rob Tocchio on low friction:
    Low Friction
    (Quicktime)
    Low Friction
    (Windows Media Player)