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If your jaw feels too narrow for your teeth, or you’ve been told you’re not a candidate for traditional palatal expansion because of your age, Miniscrew-Assisted Rapid Palatal Expansion (MARPE) may be the solution you’ve been waiting for. MARPE is a minimally invasive orthodontic procedure designed to widen the upper jaw in teenagers and adults by applying targeted force directly to the bone, bypassing the limitations of conventional appliances. It opens the door to better breathing, improved bite alignment, and meaningful airway health benefits.
At Floss & Co., airway expansion is a core focus of the practice, and MARPE fits within that mission. With our airway expansion training, holistic approach, and focus on expansion over extraction, our experienced, caring dentists treat MARPE not just as a corrective tool, but as a pathway to whole-body wellness.
What is MARPE?
MARPE stands for Miniscrew-Assisted Rapid Palatal Expansion. It is a bone-anchored orthodontic appliance used to widen the upper jaw by separating the midpalatal suture, the growth plate that runs along the center of the roof of the mouth. Unlike appliances anchored solely to the teeth, MARPE uses small titanium miniscrews inserted into the palatal bone to apply force directly to the skeletal structure.
Technical Explanation
The MARPE device consists of a custom palatal expander attached to four miniscrews, two on each side, that anchor into the bone of the hard palate. The patient activates the expander by turning a small key, applying a gradual and consistent force to slowly open the midpalatal suture. This skeletal separation allows new bone tissue to form in the gap over time.
Because the force is directed through bone rather than teeth, the technique achieves true skeletal expansion, not just dental tipping. A systematic review published in the National Library of Medicine found MARPE significantly improves suture expansion with fewer dental and skeletal side effects compared to traditional methods, with high efficacy in patients up to 25 years of age and strong results in older adults as well.
Breathing Better Starts Here
Better sleep. Less snoring. More energy. Airway expansion helps patients of all ages breathe easier. Weekend and evening hours for busy families.
How is MARPE Different from Traditional Expanders?
Traditional rapid palatal expanders (RPE) have been used for decades, primarily in children and younger adolescents. They work by applying pressure to the upper teeth, which indirectly widens the jaw. This approach is effective when the midpalatal suture is still flexible and responsive, typically before the mid-teen years. For adults, however, the suture becomes denser and more fused, which means tooth-anchored expanders often produce undesirable dental movement without achieving the skeletal change needed.
Benefits Over Alternatives
MARPE resolves this limitation by anchoring directly to bone, delivering the force exactly where skeletal change needs to happen. The benefits of MARPE over conventional expanders include several meaningful advantages worth understanding. Traditional expanders can push teeth outward in adults rather than separating bone, often leading to gum recession or tooth instability.
MARPE minimizes this risk because it distributes force through the miniscrews into the palatal bone. The procedure is also far less invasive than surgical jaw expansion (SARPE), which requires operating room time and significantly longer recovery. Patients who pursue adult orthodontics and need palatal correction can often achieve their goals with MARPE instead of a more invasive surgical route.
What is the MARPE Treatment Process?
The MARPE treatment process is structured and methodical, with each step building on the last. Imaging is always the starting point, so the clinical team can evaluate the density of the midpalatal suture and confirm MARPE is the appropriate approach. From there, the appliance is custom-fabricated and placed in a single appointment.
Procedure Steps
Once the appliance is in place, the activation phase begins. Patients receive a small key and a specific turning schedule, often one or two quarter turns per day, to gradually separate the suture over several weeks. The total active expansion period typically lasts four to eight weeks. After the expansion goals are reached, the device remains in place for several months to allow new bone to fill in and consolidate. During this phase, we monitor progress at regular check-ins to ensure stability and proper healing.
Recovery Expectations
Most patients experience mild pressure or soreness during the first few days of activation and after each turn. This is normal and reflects the bone responding to force. A temporary gap between the front teeth is also common during the expansion phase; this closes naturally as the new bone forms. Eating soft foods is recommended early in treatment. Patients at Floss & Co. are supported throughout with clear guidance and open communication, keeping the process as comfortable as possible.
Who is a Candidate for MARPE?
MARPE is primarily designed for patients with a narrow upper jaw and who are past the age at which traditional expanders are most effective. Candidates typically include teens in their mid-to-late adolescence, young adults, and adults who need skeletal expansion but want to avoid surgical intervention. Patients who experience airway-related symptoms like sleep apnea, mouth breathing, chronic nasal congestion, or snoring may also be strong candidates, as widening the palate can meaningfully open the nasal airway and improve breathing.
Cost Considerations
The cost of MARPE varies based on the complexity of the case, the extent of expansion required, and any additional orthodontic treatment needed after expansion. Floss & Co. offers third-party financing options through CareCredit and Lending Club, making treatment accessible to a wider range of patients. The practice also accepts most dental insurances, and the team is happy to walk through coverage and payment options during the consultation.
Learn More About the MARPE Expander at Floss & Co. in Chicago
For adults in the Chicago area who have been told that jaw expansion is off the table, MARPE offers a genuine alternative. We approach every orthodontic case with airway health in mind, and together with Dr. Martha Silva, the Floss & Co. team brings a rare combination of airway-focused philosophy and hands-on clinical training to every MARPE evaluation. The practice is committed to finding the least invasive path to the best outcome, and MARPE represents exactly that approach.
Whether your concern is bite alignment, breathing, or creating the space your teeth and airway need to function well, the team is ready to walk you through what MARPE can and cannot do for your individual situation. Floss & Co. welcomes patients of all backgrounds and is proud to serve the greater Chicago community with inclusive, patient-centered care. To schedule a MARPE consultation, contact our office today.