The Mechanics of a Palatal Expander

A palatal expander gradually widens the upper jaw by gently applying pressure to the upper molars with each adjustment. The animation below shows when and how to adjust your expander correctly.

After reaching the desired expansion, the appliance stays in place for several months to stabilize the results and help prevent the jaw from shifting back.

What Are Palatal Expander

A palatal expander is an orthodontic appliance used to widen the upper jaw, creating more space for teeth. It gradually separates the two halves of the palate, helping correct crossbites, crowding, and other alignment issues. This device is typically used in growing children to guide proper dental development.

Maxillary Expansion

Maxillary expansion is a treatment used to widen the upper jaw, often through a palatal expander. This procedure helps correct crossbites, crowded teeth, and narrow palates by gradually separating the palate bones. It improves tooth alignment, enhances bite function, and supports overall oral health, especially in growing children.

Pediatric Palatal Expander

A pediatric palatal expander is an orthodontic device used to widen a child's upper jaw. It helps correct bite issues like crossbites and overcrowding by gradually expanding the palate. Early intervention with this appliance allows for proper alignment of teeth and jaw development, promoting healthier dental growth.

Post-Op Care for Maxillary Expansion

Post-op care for maxillary expansion focuses on managing any discomfort and ensuring proper healing. Patients are advised to follow the expansion schedule as directed, avoid hard or sticky foods, and maintain good oral hygiene. Regular follow-up appointments are essential to monitor progress and ensure the expansion is effective.

How to Adjust Your Palatal Expander

Download a printable PDF of these instructions.

Step 1

In a well-lit area, tip the patient’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 fender will rotate and the new hole will appear. The rotation stops when the key meets the back of the expander.