The Hexahelix is an appliance for intraoral distalization.
It is composed by an acrylic button rigidly
connected to the bands of the firsts premolars and to
the firsts molars bands by two arms an L form with
three Helix per side. Depending on the activated
arm symmetric or asymmetric distalization is obtained.
When the Class I molar relationship is obtained,
the acrylic button is disconnected from the
premolar bands being converted in a Nance button.
The Nance button acts as an anchorage appliance
for the progressive distalization of the first premolar
and the canine until the Class I is obtained in the
lateral sectors. Finally the acrylic button is removed
to complete the retrusion of the incisors.
(Rev Esp Ortod. 1999;29(1):017-026)