Expanding Smiles: The Role of Expanders in Orthodontics

Orthodontic treatment is a special area of dentistry that focuses on supporting the proper alignment of the teeth and jaws through the correction of malpositioned teeth, misaligned bite (malocclusion), and misaligned jaws in addition to promoting healthy growth and development with interceptive orthodontics that use dentofacial orthopedics. One of the most commonly used dentofacial orthopedic treatments is an orthodontic expander.  

What Is an Orthodontic Expander?

Also called a palatal expander, an orthodontic expander is an orthodontic device designed to fit snuggly along the roof of the mouth. Orthodontic expanders gradually move the right and left sides of the jawbone apart in order to widen the upper jaw.  

Types of Orthodontic Expanders

There are several different types of orthodontic expanders, and an orthodontist can help you determine which is right for you or your child, depending on your needs. Three commonly used types of palatal expanders include:

• Rapid Palatal Expander (RPE) - Most commonly used is the RPE which consists of a system of metal wires and rings that attach to the molars. These wires connect to a central framework with a screw mechanism at the center. This mechanism can be adjusted with a key to gradually widen the jaw.  

• Bonded Expander - A bonded expander features a custom-designed acrylic attachment that is permanently affixed to the molars using dental cement or composite bonding.  

• Removable Expander - For patients with milder orthodontic issues, removable expanders offer a more flexible treatment solution that enables patients to remove the device for meals, oral hygiene routines, or other activities.  

How Are Palatal Expanders Used in Orthodontics?

Palatal expanders have several treatment applications in orthodontics. They can be used in the treatment of patients with:

• Crowded teeth

• Crooked teeth

• Overlapping teeth

• Impacted teeth

• Malocclusion

• Overbite

• Underbite

• Crossbite

• Open bite

• Difficulty chewing

Palate expanders help to widen the upper jawbone, creating more space for teeth. They are commonly used in orthodontic care for both children and adults. For children, they are often used as a part of interceptive orthodontics to ensure there is enough space for permanent teeth to emerge properly, preventing the need for extensive future treatments.

Orthodontic expanders are also commonly used in two-phase orthodontic treatments where the jawbone is first expanded to create ample space before the teeth are properly aligned using braces or another form of treatment.  

Additionally, palate expanders can often successfully address patients who suffer from obstructive sleep apnea.  

Dental Expanders for Children

At Fleming Orthodontics, we provide our patients with comprehensive orthodontic care designed to support healthy jaw development, proper tooth alignment, and comfortable occlusion.

While patients of any age can potentially benefit from orthodontic treatments like expanders, the American Association of Orthodontists recommends that children have an orthodontic evaluation by age seven. At this age, children are typically developed enough that an orthodontist can determine whether or not they will benefit from interceptive orthodontics. Plus, children are still growing and developing at this age which can simplify treatment, making it less extensive and complex.  

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Schedule an Orthodontic Evaluation

To learn more about expanders or to request an appointment, we welcome you to contact our orthodontist office in Richardson, Texas today.

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