The
constructions of appliances Mailyan 9-2 and 9-3 are realized on the
base of modifications of the appliancesMailyan3-4 and 3-5 developed by Daniel and David Mailyans, see, FIG3 and FIG4.
Appliance with a sliding arch
The
appliance comprises the maxillary basis connected via springs with
support-retaining wireframes of lateral and frontal teeth. For
installation of
mandibular sliding arch the rings suspended on rods are fixed on the
vestibular surface of support-retaining wireframes of lateral teeth.
The sliding
arc his equipped with an alveolar plate, a wireframe for correction of
the axial position of the lower incisors and hooks for applying elastic traction,
see FIG4 Mailyan 9 -4. In this case, the elastic traction is mounted
between the hook and the anterior bar. This ensures the influence of horizontally directed forces upon the upper and lower dentitions.