What are the benefits of a palatal expander?
A palatal expander is typically used to widen the upper jaw when it is too narrow compared to the lower jaw. It commonly treats a dental condition known as "cross bite" which is when the top teeth fit inside the bottom teeth. In some cases, expanders are used to create room for teeth that are stuck or impacted. The positive outcomes from expanding include: correction of the bite, improved aesthetics by widening the smile, and in some cases, improving nasal breathing.
What does an expander do?
A palatal expander widens the upper jaw slowly to correct a bone size problem and make room for more teeth. It works by actually pushing the bones apart on the roof of the mouth, and then holds the bones in the new position while solid bone is created on the roof of the mouth. This new bone that forms will stabilize the correction.
What can we expect with our new palatal expander?
It make take up to one week to adjust to an expander. Your child may feel some pressure on the roof of the mouth and on the molar teeth. Your child may also complain that it feels funny to swallow as his or her tongue must adjust to the new appliance. Spacing may occur between the front teeth as the upper jaw widens.
Will the expander be painful?
We rarely hear complaints of pain with a palatal expander since are slowing moving the teeth and the bones. Tongue discomfort in the first week is the most common complaint.
Are there any eating restrictions?
Hard and sticky foods can dislodge the expander. We recommend avoiding all sticky and chewy candies as well as very hard foods.
How long does will the expander stay in place?
Typically, an expander will be in place for about 9-12 months total time. This may vary from child to child depending on his or her needs.
Click here for answers to common questions about palatal expanders
Click here for a video review of palatal expander instructions and home care
Click here for a video review on how to turn the patalal expander at home
Click here for a video review on troubleshooting the expander if you cannot find the next hold to turn it
The animation below will show you how to adjust your expander. Dr. Zach and his team will provide more specific instructions on the expander if one is needed.
Adjusting the palatal expander
You can also download these instructions in a printable PDF document.
Step 1
In a well-lit area, tip your child’s head back.
Step 2
Place the key in the hole until it is firmly in place.
Step 3
Push the key toward the back of the mouth. You will notice the screw will rotate and the new hole will appear. The rotation stops when the key meets the back of the expander.
Step 4
Press back and down toward the tongue to remove the key. The next hole for insertion of the key should now be visible.