John Libbey Eurotext

L'Orthodontie Française


Le bracket Top Wire Appliance : déplacements et frottements Volume 73, issue 4, Décembre 2002


The TWA (Top Wire Appliance) bracket enables a vertical insertion of the rectangular orthodontic archwire. This updated biomechanical evolution of the TWA technique promotes corrections during the first therapeutic stages of a fixed treatment.

This bracket has been designed to take full advantage of the properties of shape memory archwires, reducing chairtime and making deep bite correction easier, dental rotations, alignment, leveling and stabilization, thanks to the rigidity of the vertically inserted arch, working heightwise.

Progressive tightening ligature, adapted to the therapeutic sequence in progress is an element of biomechanics in TWA technique.