Orthodontics
Orthodontic Expanders in Fullerton, CA
Making room for a healthy bite while the jaw is still growing.
When the upper jaw is narrow, teeth can crowd and the bite can be off. An expander gently widens it while a child is still growing.
What Is a Palatal Expander?
A palatal expander is an orthodontic appliance that gently widens the upper jaw. It fits against the roof of the mouth and attaches to the upper back teeth. In growing children, the upper jaw is made of two halves that have not yet fully fused, so gradual, controlled pressure from the expander can widen it. That creates more room for incoming teeth and can help the upper and lower teeth meet properly. We explain how the expander is adjusted and how long it is worn before treatment begins.
When an Expander May Help
Common reasons to widen the upper jaw.
- Crowding To make room for teeth that do not have enough space.
- Crossbite When upper back teeth sit inside the lower teeth.
- Narrow Upper Jaw To widen a jaw that is narrow for the lower arch.
How Treatment Works
The expander is fitted to your child’s upper teeth and adjusted gradually, following a schedule we set. Once the jaw reaches the right width, the expander usually stays in place for a while to let the new bone settle. We check progress at regular visits.
Helping Your Child Adjust
- Some pressure is normal after adjustments
- Speech and eating usually adapt quickly
- Keep the appliance clean as shown
- Regular visits to check progress
Related Care
Expanders are often part of interceptive orthodontics. See also pediatric dentistry.
The short answer
A palatal expander is an orthodontic appliance that fits against the roof of the mouth and attaches to the upper back teeth to gently widen a narrow upper jaw. In growing children, the two halves of the upper jaw have not yet fully fused, so gradual, controlled pressure can widen it. That creates more room for incoming teeth and can help the upper and lower teeth meet properly, with progress checked at regular visits.
Orthodontic Expander FAQ
- What does a palatal expander do?
- It gently widens the upper jaw. That creates more room for incoming teeth. It can also help the upper and lower teeth meet properly.
- Why are expanders used in children?
- In growing children, the two halves of the upper jaw have not yet fully fused. Gradual, controlled pressure can widen the jaw at this stage. We assess whether timing is right for your child.
- Is wearing an expander uncomfortable?
- Some pressure after adjustments is normal. Speech and eating usually adapt quickly. We explain what to expect before treatment begins.
- How long is an expander worn?
- It is adjusted gradually until the jaw reaches the right width. It then usually stays in place for a while to let the new bone settle. The length of treatment varies from child to child.
Insurance & Financing
Benefits and participation vary by plan. Please contact our office so we can help you verify your coverage and understand your options before treatment.
CareCredit and Cherry are available. Terms and approval are set by each provider.