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Everything You Need to Know About the Invisalign® System for Palatal Expansion

July 2026

Quick Answer: The Invisalign Palatal Expander System is the only FDA-cleared removable palatal expander1 designed for children ages 7 to 10. It gently widens the upper jaw using a series of custom-made, removable expanders. Because it requires no metal parts and no daily screw turning, it offers a much more comfortable and convenient experience for kids.2

Invisalign Palatal Expander System at a Glance

  • Perfect for Growing Smiles:

    Tailored specifically for children ages 7 to 10.

  • Official Clearance:

    The only FDA-cleared removable expander option available.1

  • No Metal or Keys:

    Widens the jaw smoothly without any metal hardware or manual screw adjustments.

  • High Tech Fit:

    Built using custom 3D-printing technology.

  • Painless Progress:

    Proven to be more comfortable than old-school metal devices.3

  • Lifestyle Friendly:

    Pop them right out when it is time to eat, brush, or floss.4

Finding out your child needs early orthodontic work can feel a bit overwhelming, especially when you hear technical terms like "palatal expander." Every parent wants effective treatment that will not cause their child extra stress or pain. Traditional orthodontic expanders were often bulky, fixed metal appliances. Today, modern dental technology offers sleek, removable choices that blend right into your family's normal routine.

This guide covers how palatal expansion works, how these modern innovations compare to older options, and why families are choosing this gentle path for early dental care.

What is a Palate Expander and Why Do Kids Need One?

A palate expander is a specialized orthodontic device that widens your child's upper jaw. This process creates the necessary room for adult teeth to grow in properly and helps fix a variety of bite alignment issues.5

An expander is helpful when a child has a narrow upper arch, severe crowding, or a crossbite.6 Expanding the upper jaw also helps widen the nasal cavity and airway, though it is important to note that the device is not a treatment for medical airway problems.

The American Association of Orthodontists notes that expanders are an incredibly valuable tool for correcting structural issues.6 The ideal timing for this care is while your child's facial bones are still actively growing, typically between the ages of 7 and 11.7 Catching these structural issues early prevents minor crowding or bite imbalances from turning into major problems down the road.8

How the Invisalign Palatal Expander System Works

Instead of cementing a single metal piece into the mouth, this system uses a sequence of custom-fit expanders that gradually widen the upper jaw without metal hardware or manual screw-turning.2 Each piece is 3D-printed specifically for your child's unique mouth structure. As your child moves through the series, the expanders gradually and safely guide the upper jaw outward.

The Treatment Process Step by Step:

  1. Digital Scanning:

    Your provider uses an advanced iTero™ scanner to capture a highly accurate 3D model of your child’s teeth. No messy, gooey molds required.

  2. Custom Printing:

    Using that digital model, a series of sleek expanders are custom-fit and 3D-printed.9

  3. Step-by-Step Wear:

    Your child wears each expander in the sequence to gently move the jaw into position.

  4. Easy Progress Checks:

    Regular visits with your orthodontist ensure everything is moving along perfectly.

Additionally, expanding the upper jaw with Invisalign Palatal Expander may expand the nasal cavity and nasal airway.10 The precision of this technology allows for predictable, carefully mapped movements that take the guesswork out of early orthodontic care.

Is the Invisalign Palatal Expander System Comfortable for Kids?

Orthodontic visits can make children anxious, so comfort is a top priority for parents. Fortunately, the Invisalign Palatal Expander System is widely reported to be a much more comfortable experience than older metal versions.3

Because each set is custom-fit and 3D-printed, there are no sharp metal edges to scratch cheeks and no high-pressure manual screw turning. This drastically reduces daily pain and anxiety for both the child and the parents.9

In clinical testing, an impressive 88% of parents stated that their child experienced little to no discomfort while using these expanders.11 Keeping the process pain-free ensures that children stay happy and cooperative throughout their early dental care journey.

How it Compares to Traditional Metal Expanders?

Here’s how the Invisalign Palatal Expander System compares to traditional expanders:

Feature

Invisalign Palatal Expander System

Traditional Metal Expander

Material

Less visible, custom-fit material

Metal frames and bands

Removability

Easy to remove for meals and cleaning4

Permanently adhered in until finished

Daily Adjustments

No manual screw turning required3

Requires a key to manually turn a central screw

Comfort Level

Less pain, soreness and oral irritation12

Can cause continuous rubbing and aches

Daily Hygiene

Brush and floss normally without obstacles4

Food easily gets trapped around wires

Appearance

Discreet, nearly invisible design

Highly noticeable metal hardware

Social Comfort

82% of children never felt self-conscious13

Can cause embarrassment or shyness

FDA Status

Only FDA-cleared removable expander available1

Traditional fixed medical devices

Key Benefits at a Glance:

  • Better Quality of Life:

    90% of surveyed orthodontists agree that young patients using this system enjoy a better daily experience than those with fixed metal appliances.14

  • Simple Dental Hygiene:

    Because the appliance pops right out, kids can brush and floss thoroughly without struggling around metal brackets.4

  • Stress-Free Changes:

    You get the expansion your child needs without the friction of wires or the pain of daily manual adjustments.3

Will My Child Have Trouble Using the Invisalign Palatal Expander System?

Parents often worry that a young child might struggle to wear or care for a removable appliance. However, real-world data shows that these expanders are incredibly simple for kids and parents to manage.

In clinical studies, 89% of parents reported little to no difficulty using the system.15 The expanders are designed to be so easy to insert and remove that children can quickly learn to handle them completely on their own.16 This easy learning curve avoids daily arguments, fits right into your family's routine, and gives kids a proud sense of responsibility over their new smile.

Real Success Rates and Patient Experiences

The data from families and dental professionals shows high satisfaction across the board:

  • High Compliance:

    93% of young patients successfully follow their guidelines and wear the device exactly as directed throughout treatment.17

  • Social Confidence:

    82% of parents reported that their child never felt shy, self-conscious, or embarrassed while wearing their expanders.13

  • Happy Parents:

    The vast majority of families report being entirely satisfied with the final results of the treatment.18

  • Doctor Approved:

    100% of surveyed orthodontists confirm that Phase 1 patients have an overwhelmingly positive experience with this system.19

Safety and Allergy Details

Your child's health is your main priority, and it is a focus for this system too. It stands out as the only FDA-cleared removable option for palatal expansion. For children who struggle with sensitivities or allergies, the materials used to manufacture the expanders are entirely free from latex, Bisphenol A (BPA), and common food allergens like nuts or shellfish.20 You can move forward with treatment knowing the materials are thoroughly tested, biocompatible, and safe.

Frequently Asked Questions

Can adults use this palate expander?

Palate expanders are designed for children because their jawbones are still growing and soft enough to widen gently.7 The Invisalign Palatal Expander System is clinically proven for kids ages seven to ten.2 Adults with a narrow jaw typically require surgical solutions alongside their orthodontic treatment.

How long does the process take for kids?

Every child's mouth is unique, but treatment generally lasts anywhere from a few months to a single year. Your orthodontist will map out an exact timeline so you can see your child's expected progress before you start.

Is the Invisalign Palatal Expander System noticeable?

No, it is very discreet. Because the system uses less visible material, it is far less obvious than metal brackets and bands. This is why 82% of parents noted their children never felt embarrassed or self-conscious during their daily interactions.13

How do you clean an Invisalign palatal expander?

Cleaning is incredibly quick because the device is completely removable:4

  1. Take the expander out of the mouth.

  2. Rinse it with clean, lukewarm water.

  3. Gently brush the surface with a soft-bristled toothbrush.

  4. Give it one final rinse before putting it back in.

Does a palate expander hurt?

With this advanced system, physical discomfort is minimal. In clinical reviews, 88% of parents noted their child experienced little to no pain during treatment.11 It provides a much softer, more comfortable experience3 than traditional metal expanders.

What happens after the jaw is successfully widened?

Once the expansion phase wraps up, your provider will guide you on next steps. Your child might shift to Vivera™ retainers to lock in the new jaw shape, or they may move directly into standard Invisalign clear aligners to finish straightening their smile.

Can my child eat normally with it?

Yes. Unlike traditional fixed metal expanders that trap food, your child can remove these less visible expanders before every meal.4 They can continue eating all of their favorite foods without any dietary restrictions.

Ready to Take the Next Step?

Early orthodontic intervention can pave the way for a healthier, more confident future for your child. If you are ready to explore the benefits of the Invisalign Palatal Expander System, schedule a visit with a trained provider today. Using iTero scanner, they can map out your child's smile in real time and build a customized, comfortable path to a great smile.

Results may vary. Always consult with your orthodontist or dentist to determine if Invisalign treatment is the right choice for your child.


Disclaimer: The information provided on this website is for educational and informational purposes only and does not constitute medical advice. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. You should consult your healthcare provider regarding any dental or medical condition and not disregard or delay seeking advice based on information found here. Individual experiences with treatments, such as Invisalign, may vary. Comparative statements are based on cited studies and are not intended to imply clinical superiority. Always seek professional advice for your specific needs.

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  1. FDA 510(k) premarket notification database, January 2024.
  2. Based on data from a multi-site US IDE clinical study (n=29 subjects, ages 7-10 years) of expansion treatment with Invisalign® Palatal Expanders. Data on file at Align Technology, as of September 5, 2023.
  3. Based on the survey in August 2023 in CAN of 10 Invisalign trained orthodontists who participated in the Invisalign Palatal Expander System Technical Design Assessment and have treated at least 1 patient age 6-11 years with IPE, who responded to the question: "Please indicate your agreement with the following statement: The Invisalign Palatal Expander System is comfortable for my patients to wear as there is no metal or screw to turn when compared to traditional palatal expanders (such as Schwartz, Hyrax, etc.)". Agreement scale is 1-4 with 1 being "strongly disagree" and 4 being "strongly agree". Data on file at Align Technology, as of October 30, 2023.
  4. Based on the survey in August 2023 in CAN of 10 Invisalign trained orthodontists who participated in the Invisalign Palatal Expander System Technical Design Assessment and have treated at least 1 patient age 6-11 years with IPE, who responded to the question: "Please indicate your agreement with the following statement: Patients treated with the Invisalign Palatal Expander System experience better oral hygiene than those patients treated with traditional palatal expanders (such as Schwartz, Hyrax, etc.)". Agreement scale is 1-4 with 1 being "strongly disagree" and 4 being "strongly agree". Data on file at Align Technology, as of October 30, 2023.
  5. Healthline. "Palate Expander: Types, Uses, Adjusting & Alternatives." https://www.healthline.com/health/palate-expander. Accessed 04/07/26.
  6. American Association of Orthodontists (AAO). "Palatal Expander." https://aaoinfo.org/whats-trending/palatal-expander/. Accessed 04/07/26.
  7. American Association of Orthodontists (AAO). "Why Kids Should See an Orthodontist by Age 7." https://aaoinfo.org/whats-trending/when-should-my-child-see-an-orthodontist-age-7/. Accessed 04/07/26.
  8. Healthline. "Crossbite: Definition, Pictures, Causes, and Treatment." https://www.healthline.com/health/crossbite. Accessed 04/07/26.
  9. Based on 8/23 survey from 10 Invisalign-trained orthodontists who participated in the Invisalign Palatal Expander System Technical Design Assessment in CAN. Data on file 10/30/23.
  10. Based on data from n=49 patients, ages 7-11 years old for which initial and post-expansion intraoral scans were received for expansion treatment with Invisalign Palatal Expanders and from n=3 patients cone-beam computed tomography systems (CBCT) scans analysis of the frontal and palatal views. Invisalign Palatal Expander is not intended to treat airway problems. Data on file at Align Technology, as of February 5, 2024. Sakai RH, de Assumpção MS, Ribeiro JD, Sakano E. Impact of rapid maxillary expansion on mouth-breathing children and adolescents: A systematic review. J Clin Exp Dent. 2021 Dec 1;13(12):e1258-e1270. Izuka EN, Feres MF, Pignatari SS. Immediate impact of rapid maxillary expansion on upper airway dimensions and on the quality of life of mouth breathers. Dental Press J Orthod. 2015 May-Jun;20(3):43-9.
  11. Based on survey data from a multi-site US IDE clinical study (n=26 subjects, ages 7-10 years) of expansion treatment with Invisalign Palatal Expanders. The clinical study participating patients' parents in the USA were asked, "Please rate your child's degree of discomfort while using this product." Data on file at Align Technology, as of September 5, 2023.
  12. Based on the survey in August 2023 in CAN of 10 Invisalign trained orthodontists who participated in the Invisalign® Palatal Expander System Technical Design Assessment and have treated at least 1 patient age 6-11 years with IPE, who responded to the question: “Please indicate your agreement with the following statement: The Invisalign® Palatal Expander System is not as painful for my patients to wear when compared to traditional palatal expanders (such as Schwartz, Hyrax, etc.)”. Agreement scale is 1-4 with 1 being “strongly disagree” and 4 being “strongly agree”. Data on file at Align Technology, as of October 30, 2023.
  13. Based on survey data from a multi-site US IDE clinical study (n=29 subjects, ages 7-10 years) of expansion treatment with Invisalign Palatal Expanders. The clinical study participating patients' parents in the USA were asked, "During the course of his or her treatment, how often did your child feel shy or embarrassed?" Data on file at Align Technology, as of September 5, 2023.
  14. Based on the survey in August 2023 in CAN of 10 Invisalign trained orthodontists who participated in the Invisalign Palatal Expander System Technical Design Assessment and have treated at least 1 patient age 6-11 years with IPE, who responded to the question: "Please indicate your agreement with the following statement: Patients treated with the Invisalign Palatal Expander System experience better quality of life than those patients treated with traditional palatal expanders (such as Schwartz, Hyrax, etc.)". Agreement scale is 1-4 with 1 being "strongly disagree" and 4 being "strongly agree". Data on file at Align Technology, as of October 30, 2023.
  15. Based on survey data from a multi-site US IDE clinical study (n=29 subjects, ages 7-10 years) of expansion treatment with Invisalign Palatal Expanders. The clinical study participating patients' parents in the USA were asked, "Please rate how difficult it was for you to use this product." Data on file at Align Technology, as of September 5, 2023.
  16. Based on survey data from a multi-site US IDE clinical study (n=29 subjects, ages 7-10 years) of expansion treatment with Invisalign Palatal Expanders. The clinical study participating patients' parents in the USA were asked, "Please rate how difficult it was for your child to use this product. Data on file at Align Technology, as of September 5, 2023.
  17. Based on doctor feedback during study monitoring of a multi-site US IDE clinical study (n=29 subjects, ages 7-10 years) of expansion treatment with Invisalign Palatal Expanders. Data on file at Align Technology, as of September 5, 2023.
  18. Based on survey data from a multi-site US IDE clinical study (n=29 subjects, ages 7-10 years) of expansion treatment with Invisalign Palatal Expanders. The clinical study participating patients' parents in the USA were asked, "Did the appliance work to the Family's satisfaction?" Data on file at Align Technology, as of September 5, 2023.
  19. Based on the survey in August 2023 in CAN of 10 Invisalign trained orthodontists who participated in the Invisalign Palatal Expander System Technical Design Assessment and have treated at least 1 patient age 6-11 years with IPE, who responded to the question: "Please indicate your agreement with the following statement: "Patients who were treated with Invisalign Palatal Expander had a positive treatment experience." Agreement scale is 1-4 with 1 being "strongly disagree" and 4 being "strongly agree". Data on file at Align Technology, as of October 30, 2023.
  20. Based on the current knowledge of the materials and processes used in the manufacturing of Invisalign Palatal Expander System. Data on File at Align Technology, as of October 15, 2023.