Skip to content
Harmony Orthodontics – Smile in Harmony logo

Early Treatment · 4 min read

Palatal Expanders: A Parent’s Guide

What a palatal expander is, why orthodontists recommend it, how it feels and how long it takes — answers for parents in Gresham, Sandy, Camas and Tualatin.

By Dr. Tod Hardin, orthodontist ·

Child smiling during an orthodontic visit

What is a palatal expander?

A palatal expander is a small appliance that fits along the roof of the mouth and attaches to the back teeth. A tiny screw in the center is turned on a set schedule, gently widening the upper jaw at its natural growth seam.

Why it’s recommended

A narrow upper jaw can cause crossbites, crowding and even contribute to breathing issues. Expanding while a child is young creates room for permanent teeth and helps the upper and lower teeth fit together properly.

How it feels

Kids typically feel pressure across the nose and cheeks for a few minutes after each turn. Speech and eating may feel different for a few days, but most children adapt quickly. A small gap between the front teeth often appears — a normal sign the expander is working that usually closes on its own.

Timeline

Active turning usually lasts a few weeks, followed by a few months of the expander staying in place while new bone fills in. We’ll give you a simple calendar and check progress at each visit. Invisalign First is another option for some children.

Have a question about your own smile? Your first exam is free.

This article is for general education and isn't a substitute for an exam. Call (503) 666-2196 to talk with our team.

Ask Harmony · Start your smile journey here

Ask Harmony about this topic.

Get an instant follow-up answer from our AI concierge — or ask it to help you pick the closest office.

Ask Harmony

Start your smile journey here

Hi there! Every great smile starts with a question. Ask me about Invisalign, braces, care for kids, our four offices or your free exam.

AI assistant for general information only, not medical advice. For urgent issues, call your office.

Keep reading

Related articles

All articles

Ready to see what your smile could look like?

Your first exam is free — including a full evaluation and a clear plan, cost and timeline.