MARPE vs a Traditional Palatal Expander vs Invisalign Palatal Expansion
If you or your child has a narrow upper jaw, crowding or a crossbite, you may be comparing several types of palatal expansion. MARPE, traditional palatal expanders and the Invisalign Palatal Expander can all create more width, but they are designed for different ages, anatomy and treatment needs.
At Walt Orthodontics in Vaughan, the decision begins with determining whether the concern involves the teeth, the upper jaw or both. Skeletal maturity, gum health and the amount of expansion required can be just as important as age.
Why Is Palatal Expansion Recommended?
The upper jaw should fit comfortably around the lower teeth. When it is too narrow, a patient may develop crowding, a crossbite, limited room for permanent teeth or a lower jaw that shifts to one side when biting.
Palatal expansion creates more width across the upper arch. In growing patients, it may also open the midpalatal suture so new bone can form between the two halves of the upper jaw.
Our guide to palatal expanders explains how expansion can create space for developing teeth and support a more balanced bite. Expansion may also be considered when airway concerns are present, although it is prescribed according to the complete orthodontic diagnosis and is not a guaranteed treatment for a breathing or sleep disorder.
What Is a Traditional Palatal Expander?
A traditional palatal expander is usually a fixed metal appliance attached to the upper back teeth. A screw in the centre is turned according to the orthodontist’s instructions, gradually widening the appliance and applying pressure to the upper jaw.
This option is commonly used for children and younger teenagers because the jaw is still developing. It can be effective for creating space and correcting certain crossbites when treatment is timed appropriately.
Temporary pressure, changes in speech, extra saliva and a space between the front teeth can occur. The appliance normally remains in place for a holding period after the active turns are complete.
Families can read more about how traditional palatal expansion works and why early timing can be important.
What Is MARPE?
MARPE stands for Miniscrew Assisted Rapid Palatal Expansion. Small temporary anchorage devices are placed in the palate so more of the expansion force is directed towards the upper jaw rather than relying mainly on the teeth.
MARPE is often considered for later teenagers and adults whose upper jaw may not respond predictably to a conventional tooth supported expander. It may create skeletal expansion while limiting some of the unwanted outward tipping of the teeth.
This approach requires careful planning, suitable palatal bone and close monitoring. Results can vary with age and anatomy, so some adults may still require surgically assisted expansion or another treatment approach.
What Is the Invisalign Palatal Expander?
The Invisalign Palatal Expander is a removable system designed mainly for growing patients. Instead of using a metal screw, it includes a planned series of custom three dimensional printed expanders that become progressively wider.
Each device is worn and changed according to the schedule provided by the orthodontic team. Because the expander can be removed as directed, many families find eating, brushing and cleaning easier than with a fixed appliance.
The Invisalign Palatal Expander is not the same as regular Invisalign aligners simply moving teeth outward. It is specifically designed to widen the upper jaw in suitable young patients and may be followed by Invisalign First, braces or another phase of orthodontic treatment.
Which Expander Is Best?
There is no single best option for every patient. A traditional expander may be a predictable choice for a growing child, while the Invisalign Palatal Expander may suit a young patient who would benefit from a removable and screw free approach.
MARPE may be considered when a patient is more skeletally mature and requires additional upper jaw width. The recommendation depends on jaw development, anatomy, periodontal health, the severity of the crossbite and how much skeletal expansion is required.
Comfort and convenience are important, but the appliance must first be capable of producing the type and amount of change the patient needs.
Will Expansion Straighten the Teeth Too?
Expansion can create valuable space and improve how the upper and lower jaws fit, but it does not always straighten every tooth. Many patients still need braces or clear aligners to close spaces, position individual teeth and refine the bite.
A temporary gap may appear between the upper front teeth during expansion. After the active expansion stage, a holding period is usually needed while new bone matures and the result becomes more stable.
Following the orthodontist’s instructions during this stage is an important part of protecting the correction.
How Walt Orthodontics Plans Palatal Expansion
At Walt Ortho, treatment planning may include photographs, X rays, an examination of the bite and an iTero digital scan. These records help Dr. Walt determine whether the required change is mainly dental, skeletal or a combination of both.
For a growing child, early orthodontic treatment may include a traditional palatal expander or the Invisalign Palatal Expander. For a later teenager or adult, MARPE, orthodontic treatment or jaw surgery may be discussed depending on the diagnosis and treatment goals.
Book a Palatal Expansion Consultation in Vaughan
MARPE, traditional palatal expanders and Invisalign Palatal Expansion share the goal of creating a healthier amount of upper jaw width, but they are not interchangeable. The right choice depends on the patient’s development, anatomy, bite, lifestyle and long term oral health.
Walt Orthodontics welcomes children, teenagers and adults from Vaughan, Maple, Thornhill, Richmond Hill, Woodbridge, King City and surrounding communities. Book a complimentary orthodontic consultation to have your or your child’s bite evaluated and receive a personalized treatment recommendation.
