What Is A Palatal Expander?

Cronin & Czarnik Orthodontics • October 7, 2021
Smiling child with light brown hair in a black shirt, looking to the side on a white background

If Dr. Cronin, Dr. Czarnik and our team at Cronin & Czarnik Orthodontics have recommended a palatal expander, you might be wondering what it is and how it will help you. A palatal expander is a small appliance fitted in your mouth to create a wider space in the upper jaw. It is often used when there is a problem with overcrowding of the teeth or when the upper and lower molars don’t fit together correctly. While it is most commonly used in children, some teens and adults may also need a palatal expander.

Reasons to get a palatal expander

There are several reasons you might need to get a palatal expander:

  • Insufficient room for permanent teeth currently erupting
  • Insufficient space for permanent teeth still developing which might need extraction in the future
  • A back crossbite with a narrow upper arch
  • A front crossbite with a narrow upper arch

How long will you need the palatal expander?

On average, patients have the palatal expander for four to seven months, although this is based on the individual and the amount of correction needed. Several months are needed to allow the bone to form and move to the desired width. It is not removable and must remain in the mouth for the entire time.

Does it prevent the necessity for braces?

The palatal expander doesn’t necessarily remove the need for braces in the future, but it can in some cases. Some people only need braces because of a crossbite or overcrowding of the teeth, which a palatal expander can help correct during childhood, when teeth are just beginning to erupt. However, others may eventually need braces if, once all their permanent teeth come in, they have grown in crookedly or with additional spaces between.

If you think your child could benefit from a palatal expander, or want to learn about your own orthodontic treatment options, please feel free to contact our Westminster, and Winter Park office!

Share this article

Recent Posts

By Cronin & Czarnik Orthodontics • July 9, 2026
Learn why wearing your retainer for life helps prevent teeth from shifting after braces or Invisalign. Protect your smile with expert orthodontic advice.
Illustration explaining MARPE, MASPE, and MSE palatal expansion terminology
June 19, 2026
Understand why MARPE, MASPE, and MSE are different names used for miniscrew-assisted palatal expansion and what they mean for adult treatment.
Why Age 7 Is Oldschool Thinking: The Case for Earlier Orthodontic Evaluations
By Cronin & Czarnik Orthdontics • April 10, 2026
The AAO recommends a first orthodontic evaluation by age 7. Learn the signs that mean an earlier visit may help your child's teeth, jaws, and airway.
Close-up of a smiling mouth showing white teeth and pink lips
By Cronin & Czarnik Orthodontics • March 19, 2026
Worried MARPE expansion will leave a gap between your front teeth? Learn how our No Diastema Protocol is designed to avoid it.
Ask Me Anything About My MARPE Treatment
By Cronin & Czarnik Orthodontics • February 16, 2026
Julie, a 39-year-old patient, answers common questions about her MARPE treatment, what surprised her most, and how it has changed her daily life.
MARPE: The Greatest New Treatment in Orthodontics
By Cronin & Czarnik Orthodontics • January 7, 2026
Learn how MARPE (miniscrew-assisted rapid palatal expansion) addresses the skeletal causes of orthodontic problems, and how our process works.