Home / Services / Palatal Expanders

Healthier Smiles with Palatal Expanders.

What Is A Palatal Expander?

A palatal expander is an appliance that’s used to expand a child’s palate (the roof of the mouth), creating enough room for all of the adult teeth to fit comfortably. The goal is not just to move the teeth, but to widen the jaw itself. Expanding the upper jaw is done gradually, gently spreading apart the bones and cartilage of the upper jaw over months. There are many different types of expanders, and the specific type of expander that your child needs will be determined by your orthodontist.

How Does A Palatal Expander Work?

A palatal expander has either two or four rings or “bands” that are wrapped around a tooth on either side of your child’s mouth. In the middle of the expander is a small gear. With your help, your child will insert and turn a key in the gear every so often (according to the doctor’s advice) to slightly increase the outward tension of the expander. With each turn, the increased tension gradually spreads the palate apart to create more space for incoming teeth.

How Does A Quad-Helix Work?

Instead of a “gear” that is turned every night, the quad helix has four loops (or helices) that essentially make this type of expander a large spring. When inserted, the orthodontist takes the appliance and widens these loops. That way, once the appliance is in place, it will provide a constant and gentle pressure to widen the palate and teeth. Unlike a “Hyrax” expander, this appliance is adjusted only by the orthodontist at regular visits.

When Should My Child Get a Palatal Expander?

Timing expander treatment is very important. Palatal expanders should ideally be used before the two separate plates of the palate fuse together in puberty (around age 14-16). Because of this, expanders may be recommended as early as 6-10 years old, as they typically work best on younger children. Expansion on younger patients is easier, and there are more options in terms of the type of expanders that we use. If done early, expansion can be simpler and more effective. Sometimes, expansion may be delayed until more permanent teeth erupt (12-14 years old), but it is important to begin treatment with an expander prior to the fusion of the upper palate bones.

Here Are Three Common Situations Where We Recommend an Expander.

Underbite

Crossbite

Impacted teeth

Frequently Asked Questions.

How Long Will My Child Wear an Expander?
Is Wearing an Expander Uncomfortable?
Is Your Child Ready for an Expander?

Our Reputation for Excellence.