Connecting bow 1.5 mm hard, labial bow 0.9 mm hard, supporting thorns 0.8 mm spring hard, protrusion spring 0.7 mm spring hard
Function:
Alignment of the anterior teeth
Description:
Delicate activator with wide space for the tongue
For the SOA the elements are bent according to the planned design and are fixed with wax. The rigid connecting bow is underlaid with tin foil before its fixation in the area of the first molars of the upper jaw to guarantee an even distance from the palatal gingival tissue.
The acrylic base is designed as in the EOA, as delicate as possible with interocclusal acrylic. The rigid connecting bow gives the body of the appliance certain stability.
Because of the rigid connecting bow, with this appliance expansion of the jaws is not possible.
