Palatal Expansion

A palatal expander, also known as a rapid palatal expander, 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. Use of a palatal expander is most often followed by braces to straighten out the teeth, now that room has been created. Dr. Koch may include a palatal expander in your treatment if your malocclusion involves a crossbite or crowding of the upper teeth.