A comparative study of conventional ligation and self-ligation bracket systems -AJODO, Nov. 1994

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.

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