Palatal Expander

A palatal expander, also known as a rapid palatal expander (RPX), is used to widen the maxilla (upper jaw) so that the upper and lower teeth will fit together better. Although the use of an expander is most common in children, it can be used in adults. Palatal expanders are most often followed by braces or Invisalign to straighten out the teeth, once room has been created. As a result, Dr. Koch may include an appliance in your treatment if your malocclusion involves a crossbite or crowding of the upper teeth.