What is a Palatal Expander, and What is it Used For?

October 28, 2024

A palatal expander actively addresses various teeth and jaw issues, known as malocclusions. Reasons why a patient might need a palatal expander include:

  • Crossbite: This occurs due to a misalignment of the teeth, where the upper teeth position themselves behind the corresponding lower teeth when the jaws close. A palatal expander can correct a crossbite by widening the underlying bone, preventing uneven wear, gum recession, and jaw problems.
  • Crowding: A narrow jaw can lead to inadequate space to align teeth ideally. The expander can create space for your orthodontic specialist to shift your teeth into their proper positions.

Who Might Be a Candidate for a Palatal Expander?

Orthodontists most commonly use a palate expander to treat growing children and young teenagers. Dr. Zeynep Ulku can determine the appropriate age for a patient to have an expander as part of their custom treatment plan by considering age, skeletal maturity, and gender. Appropriate use of expansion therapy can help, in some cases, avoid tooth extraction, tooth impaction, or excessive flaring of teeth.

If not corrected with an expander during growth, these cases may lead to asymmetric jaw development, abnormal tooth wear, and bite issues that could require surgery in adulthood.

The AAO recommends consulting with your orthodontist to determine the best treatment options.

Are There Different Types of Palate Expanders?

There are several different types of palatal expanders. Your orthodontist will determine the best option for you based on your unique orthodontic condition.

  • Rapid Palatal Expander (RPE): The most common expander, with metal bands on molars connected by a metal framework across the palate. A central screw gently widens the upper jaw over time when activated with a key.
  • Bonded Expander: This type uses an acrylic attachment fixed with dental cement for the duration of treatment
  • Removable Expander: Suitable for milder cases, this custom acrylic plate can be removed for cleaning and eating.

Are Palatal Expanders Safe & Effective?

These appliances have been used safely and effectively for decades under orthodontic supervision. Initial discomfort with an expander is minimal and short-lived. With proper care and regular checkups, expanders are highly effective and essential for correcting orthodontic issues.