Palatal expander

The removable palatal expansion appliance is comprised of a stainless steel and clear acrylic frame surrounding the permanent first molars, the primary molars, and primary cuspids, with palatal acrylic and an expansion mechanism in the midline of the palate (roof of the mouth).

  • Usage
    The KDE appliance is used to slowly and carefully broaden the upper jaw by exerting lateral pressure on the two halves of the maxilla (upper jaw) in patients with a constricted maxilla (narrow upper jaw). If done properly, bone grows in the middle and a once-constricted maxilla can attain proper width to improve the bite. Expanding the maxilla may also help to create space for eruption of permanent teeth.