Orthodontic expanders, also known as palatal expanders, are commonly used to create more space in a child’s mouth by widening the upper jaw. If your child is starting treatment with an expander, understanding what to expect can help make the process smoother and more comfortable.

What Is an Orthodontic Expander?
An orthodontic expander is a custom-fitted device designed to gradually widen the upper jaw. It can help:
- Correct crossbites.
- Create space for crowded teeth.
- Improve breathing by addressing narrow airways.
The device typically fits snugly onto the upper teeth and is adjusted with a special key.
The Adjustment Process
The expander works by applying gentle pressure to the upper jaw bones, encouraging them to widen over time. Here’s how it’s done:
- Activation: A small key is used to turn the screw in the center of the expander. This activates the device.
- Schedule: Your orthodontist will provide instructions on how often to turn the key, typically once or twice a day.
- Duration: Expanders are usually worn for 3–6 months to allow the jaw to stabilize after expansion.
What to Expect
- Initial Adjustment: Your child may feel mild pressure on their teeth and palate after each turn of the expander. This usually subsides within a few minutes.
- Temporary Discomfort: It’s normal for children to experience slight discomfort or tightness, especially in the first few days. Over-the-counter pain relief, like ibuprofen, can help.
- Speech Changes: Speech may sound different initially, but most children adapt within a week.
- Food Challenges: Sticky and hard foods should be avoided as they can damage the expander. Soft foods like yogurt, pasta, and mashed potatoes are great options.
- A Gap Between Front Teeth: You may notice a gap forming between the upper front teeth. This is a good sign that the expander is working!
Tips for Success
- Maintain Good Oral Hygiene: Help your child brush around the expander to prevent food from getting trapped.
- Use the Key Properly: Follow your orthodontist’s instructions carefully to ensure the expander works effectively.
- Reassure Your Child: Encourage them to communicate if they’re experiencing discomfort or challenges.
- Regular Checkups: Attend all follow-up appointments to monitor progress and make adjustments.
Benefits of Expanders
While the process may seem daunting at first, the long-term benefits are worth it. Orthodontic expanders can:
- Prevent the need for tooth extractions or jaw surgery later.
- Improve alignment for a more attractive smile.
- Enhance breathing, which can be especially helpful for children with sleep-disordered breathing or snoring.
At Broadbeach Orthodontics, we’ve worked with many children using expanders and understand how to make the process as stress-free as possible for families. If you have any questions or need support during your child’s treatment, we’re here to help!
Would you like information about what foods are easiest to eat with an expander or how to clean it effectively? 😊 Check out our next blog.