Could a Narrow Upper Jaw Be Affecting More Than Your Smile?
What Is MARPE Treatment? Why is it different?
What to Expect With Pinewood’s TAD-First Guided MARPE Protocol
Step 1: Records and Digital Planning
Treatment begins with detailed photographs, digital scans, X-rays, and 3D imaging. These records allow Dr. Fantaski to evaluate the width of the upper jaw, the position of the teeth, available bone, tongue space, bite relationship, and the safest locations for the temporary anchorage devices. Sometimes, a sleep test is recommended prior to treatment as a part of the records process.
The MARPE appliance and surgical guide are then planned around your individual anatomy. This is not a one-size-fits-all expander. Every step is designed before treatment begins.
Step 2: Guided TAD Placement
Behind the scenes, Dr. Fantaski plans your surgery and fabricates a 3D printed surgical guide prior to the procedure.
A few weeks weeks after the records appointment, the TADs—small temporary anchorage devices—are placed during a carefully planned surgical visit. This visit typically takes an hour, is done utilizing local anesthetic, and most patients to not need to take time off of work. Patients usually are on NSAIDS such as Tylenol or Ibuprofen for 72 hours after the procedure.
The TADs provide stable support directly from the palate so the expansion forces can be directed toward the upper jaw rather than relying primarily on the teeth. Because their positions were planned digitally, they can be placed precisely based on your individual anatomy. After placement, the Pinewood team will take updated scans with scan bodies, to begin the fabrication of your custom MARPE appliance.
Step 3: Attaching and Activating the MARPE Appliance
About two weeks after the TADs are placed, you will return to have the custom MARPE appliance attached to them. The appliance is checked carefully and turned for the first time to activate it. Our team will show you exactly how to complete the prescribed turns at home.
Most patients begin by turning the appliance once per day. Each turn gradually applies pressure across the upper jaw as we work toward skeletal expansion, or ‘the split’. For most patients, this happens within the first 2 weeks. Sometimes, if the bone is very dense, before the appliance is placed Dr. Fantaski will need to get you numb and help open up the suture on the upper jaw.
Step 4: Reaching the Skeletal Split
The initial goal is to reach the “split.” This means the midpalatal suture—the natural connection between the right and left sides of the upper jaw—has opened and true skeletal expansion has begun.
The split refers to the jaw itself opening at the suture. It does not mean that a large visible gap must form between the front teeth, however the easiest way for patients to know they have split, is to notice a tiny space between their front teeth that no longer pops floss. Patients who fail to split in the 2 weeks will come back in to talk to Dr. Fantaski, and may need to visit the oral surgeon for a procedure called DOME which helps open the sutures surgically so the appliance can do its job.
Unlike many traditional MARPE protocols, Pinewood’s TAD-first guided approach is designed to keep the teeth controlled throughout expansion. The dramatic front-tooth gap commonly seen in other MARPE cases does not develop with our protocol.
Step 5: New Scans and a Planned Pause
Once the skeletal split has been achieved, you will return for new digital scans and records. These allow us to confirm the change, evaluate how the upper jaw and bite are responding, and begin planning the orthodontic phase around the new width that has been created.
There is then a planned pause in active turning while your clear aligners are designed and manufactured, which is typically two weeks.
Step 6: Clear Aligners and Maintenance Turns
When your aligners are ready, you will return for delivery and instructions. The aligners guide the teeth into their new positions while the MARPE appliance maintains the skeletal expansion.
At this stage, patients commonly continue turning the appliance approximately once per week as they swap their Invisalign trays. These slower maintenance turns help preserve the expansion while the aligners control the teeth, coordinate the bite, and keep the front teeth together.
This is one of the defining advantages of our protocol: expansion and orthodontic movement are coordinated from the beginning, allowing us to create skeletal width without asking the patient to live with the large front-tooth gap traditionally associated with MARPE.
This phase of care is typically three months, during which time the appliance does its job in opening up the maxilla. Most patients feel the difference in how they breathe within the first 6 weeks.
After the activation protocol is over, you will come back in to see Dr. Fantaski. The appliance will stay in your mouth for an additional three to four months, during which time you will continue to progress in your Invisalign trays.
After the three to four month period, an X-Ray will be taken to verify that the bone has formed between the two sides of the upper jaw. The TAD’s and MARPE appliance will be removed, and you will be scanned for additional Invisalign aligners to finish out the orthodontic stage of treatment.
Most patients are in treatment for 18 months total, and the MARPE appliance is in for six to nine months.
Why MARPE Can Be Life-Changing

A More Controlled MARPE Protocol at Pinewood
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Have Questions About MARPE Treatment?
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MARPE treatment at Pinewood happens in carefully planned stages. After your records are completed, the guided TAD-placement visit is usually scheduled about two weeks later. Approximately two weeks after that, the custom MARPE appliance is attached to the TADs and activated.
Most patients then turn the appliance once per day until the skeletal split is achieved. You will return for new scans, take a planned break from active turning, and then begin clear aligner treatment. Once the aligners are delivered, expansion usually continues more gradually—often about once per week—while the teeth and bite are guided into their new positions.
The exact timeline varies based on your anatomy, response to expansion, and orthodontic goal, but most patients should expect around 18 months of treatment.
The “split” means the midpalatal suture—the natural connection between the right and left sides of the upper jaw—has opened and true skeletal expansion has begun.
This is different from simply tipping the teeth outward. It confirms that the upper jaw itself is widening. With Pinewood’s TAD-first guided protocol, the split does not require the dramatic front-tooth gap commonly associated with traditional MARPE treatment.
No. Pinewood uses a TAD-first guided MARPE protocol that coordinates expansion with clear aligner treatment so the front teeth remain controlled.
The large space between the upper front teeth commonly shown in traditional MARPE cases does not develop with our protocol. After the skeletal split is confirmed, new scans are taken and aligners are designed to guide the teeth while expansion continues more gradually.
The TADs are placed during a planned, digitally guided surgical visit. TADs are small temporary anchorage devices placed in the palate to support the MARPE appliance directly from the upper jaw.
This is not jaw surgery, but is mild oral surgery similar to having a dental implant placed (because it is placing mini-dental implants!). The positions are planned from your 3D records and transferred through a custom guide so the TADs can be placed precisely based on your anatomy. The procedure typically takes about an hour, and is done under local anesthetic. Nitrous oxide can be used if you are nervous!
Most patients describe pressure or tightness across the palate, teeth, cheeks, or nose after an activation. This usually settles as the body adjusts.
You will receive clear instructions for turning and caring for the appliance, and we will monitor your progress throughout the active expansion phase.
MARPE creates skeletal width, but the teeth and bite still need to be guided into the new space. Clear aligners allow us to coordinate tooth movement with expansion rather than waiting until the expansion is completely finished.
After the skeletal split is confirmed, new scans are taken and your aligners are designed. Once they are delivered, the aligners help control the teeth and keep the front teeth together while slower maintenance turns continue—usually about once per week.
The roof of the mouth is also the floor of the nasal cavity. Widening the upper jaw may increase nasal dimensions and support improved nasal airflow for some patients.
Many patients also notice changes in mouth breathing, snoring, sleep quality, or daytime energy. Results vary, and MARPE is not presented as a guaranteed cure for sleep apnea or every airway concern. Sleep testing and other objective records may be recommended when appropriate.
MARPE is a medical procedure with a dental benefit of upper arch expansion.
To truly appreciate all of the benefits of MARPE, patients must undergo myofunctional therapy to teach their tongue how to utilize the space in they mouth and airway. For myofunctional therapy, Pinewood refers to Janey Hoag.
MARPE is most commonly considered for adults and older teens who need true skeletal expansion after conventional childhood expansion may be less predictable.
Younger children often have other expansion options available while their jaws are still developing. Pinewood also offers pediatric airway and growth evaluations for children ages 3–14. For teens and young adults, after the age of 13-14 when the suture has joined, MARPE is needed for skeletal expansion.

