Rapid palatal suture - expansion apparatus and method for their preparation

摘要

With a first and a second main body (5, 6) which is equipped with rapid palatal suture - expansion apparatus, which can be actuated along a longitudinally sliding direction (y) of an actuating element (2) to be displaced and by means of anchoring means (100) with at least one first and a second wire-shaped supporting arm (10, 11) to be connected with opposite sections of a dental arches to interact. The supporting arm (10, 11) comprise a transversely projecting, cylindrical asymmetrical section (10a '', 11a''), which in an aspect ratio into a widened portion (101a) of a in the two main bodies (5, 6) mounted to the profiled seat entry. The profiled seat (101) extends on the outside with an insertion opening (101a '') having dimensions, the at least the transversely projecting portion (10a'', 11a '') correspond to. The anchoring means (100) comprise a spot weld between the main body (5, 6) and the respective supporting arm (10, 11) or a punching of the main body, which carries a section, which has been deformed to form a bond with the supporting arm (10, 11) in said profiled seat (101) to enter into.