Maxillary or palatal expansion is done when the upper jaw is too narrow relative to the lower jaw. Maxillary expansion is used to correct crossbites and also will create more space for crowded teeth. The expander appliance is attached to the molar teeth and is usually worn for 4-6 months.
The expansion appliance is custom made for each patient and attached to the teeth with a dental adhesive. The appliance is widened by placing a key into the appliance and turned once per day. Dr. Anderson monitors the expansion every 2-3 weeks to make sure the expansion is progressing properly. After the expansion is complete the expander is typically left in place for 12 weeks for the palatal bones to heal and stabilize.