The present invention relates to ionic compositions for enhancing wound healing, particularly in the sinonasal cavity. The ligation cover is selectively rotatable about the film hinge relative to the bracket base between an open, non-ligating position and closed, ligating position relative to the arch wire slot. The present invention provides a stamper for producing a microneedle sheet. On a reception device is collected a film having a three-dimensional non-woven structure constructed by the first fibers and the second fibers. Therefore, rotation of the component builds up a positive pressure on the radially outer region of the rotating component in the region of the housing in the interior of the hybrid module.