Effects of Invisalign Palatal Expander System

"Invisalign palatal expander system:~The Invisalign® Palatal Expander System (AlignTechnology, inc.) is 3D-printed orthodontic device for maxillary expansion."

"Hyrax expander:~The Hyrax-type maxillary expander will include a midline self-locking screw. The expansion screw is connected to the conventional molar bands or printed clasps, which are cemented on the maxillary first molars (or on the maxillary primary second molars), via 0.9 mm stainless-steel wire. The framework is soldered to the bands and extends on the palatal side to the primary canines or canines. The expander will be fabricated by a qualified laboratory technician"