In short
MARPE, or microimplant assisted rapid palatal expansion, widens a narrow upper jaw by anchoring an expander to the bone of the palate with miniscrews, so the force separates skeletal structure instead of tipping teeth outward. At Form + Function Dental Aesthetics in Las Vegas, Dr. Kevin Tan plans every MARPE case from a large view CBCT scan and a clinical exam, fits the appliance, then monitors the expansion while you activate it at home on a set schedule. Patients pursue it for easier nasal breathing, more tongue space and better sleep. Candidacy varies from person to person, and some cases are referred out.
MARPE stands for microimplant assisted rapid palatal expansion. It widens a narrow upper jaw in an adult, using small screws anchored into the bone of the palate so that the force separates skeletal structure rather than tipping teeth outward. At Form + Function Dental Aesthetics in Las Vegas, MARPE sits inside our airway work. The reason to widen a palate is almost always breathing.
Your upper jaw is two things at once: the roof of your mouth and the floor of your nose. When it is narrow, the nasal passages above it are often narrow too, and the tongue can be left with less room, tending to sit back and down toward the throat. Palatal expansion for adults addresses both.
MARPE is a committed treatment rather than a quick correction, and it is not right for everyone. Candidacy is decided on a large view CBCT scan and a clinical exam, and we refer when a specialist is the more appropriate care.
Why a narrow palate is a skeletal issue and not a tooth issue
Clear aligners and braces move teeth through bone. They can make a crowded arch look wider by uprighting teeth that lean inward. What they cannot do is move the bone itself. If the jaw underneath is narrow, straightening the teeth leaves the nasal floor where it was and gives the tongue no more room.
The width of an upper jaw is set largely by how it grew, and breathing and swallowing patterns in childhood are associated with that growth. A tongue that rests low, as it tends to in a mouth breather, spends less time against the palate. A high narrow palate is commonly seen alongside that pattern rather than a broad flat one. The signs are ordinary enough that most people never connect them to each other:
- A high, vaulted palate, narrow across the roof of the mouth
- Crowded upper teeth, or crowding that returned after braces
- Habitual mouth breathing, day or night
- A dry mouth on waking, or congestion on one side of the nose
- Snoring, or a partner who notices pauses in your breathing
- Scalloped edges along the tongue, where it presses against teeth
None of these prove anything alone. They are reasons to look properly.
Dr. Kevin came to airway work through his own diagnosis. He was an elite athlete who could not get enough oxygen, and the cause turned out to be a narrow dental and skeletal airway rather than a limit of fitness.
Can adults have palatal expansion, or is MARPE only for children?
Adults can have palatal expansion, and MARPE is what makes it possible for many adults without surgery. In a child, the midpalatal suture running along the roof of the mouth is still open, so a conventional expander pushing against the teeth separates it. In an adult that seam has interlocked and largely fused, and a tooth borne expander tips the teeth outward and leaves the bone where it was.
MARPE changes where the force lands. Miniscrews are anchored into the palatal bone, and the expander pushes against those, so the load reaches the skeleton instead of the teeth. That is why expansion is possible in adults whose growth finished long ago.
It is not universal. Fusion of the suture varies from person to person and tends to be denser with age, and there are adults in whom MARPE is unlikely to separate bone predictably. The CBCT is where that judgment gets made. When MARPE is not the right tool, surgically assisted expansion may be, and that is oral surgery, which we refer out.
How MARPE is planned and monitored at our Summerlin studio
Every case starts with records. The large view CBCT captures a full three dimensional image from head to neck, which lets Dr. Kevin see the suture, the width of the palate, the nasal floor and the shape of your airway rather than infer them from outside. The digital intraoral scanner records the shape of your teeth and palate, with no impression material.
When sleep is part of the picture, we can record your overnight oxygen at home with a SleepStat BLE high resolution pulse oximeter. That recording is screening information, not a diagnosis. Obstructive sleep apnea is diagnosed by a physician, and we coordinate with one.
The appliance is fitted to your palate and anchored with miniscrews into bone. Dr. Kevin will explain how that appointment is handled in your case, including who places the screws. From there you turn an activation key at home on the schedule he sets, and you return so the expansion is measured rather than assumed. A space often opens between the two upper front teeth while bone separates. It is expected, and it is managed as treatment continues.
- Consultation, exam and records, including CBCT and an intraoral scan
- A planning visit where Dr. Kevin says whether MARPE fits
- Fitting of the expander, anchored to the palate with miniscrews
- Daily activation at home, on the schedule given to you
- Short review visits through the active phase
- A holding period at the target width, while new bone fills in
- New records, set beside the first ones
What patients want at the end of this is plain: nasal breathing that works, a tongue with somewhere to go, and sleep that leaves them rested. How much of that any individual gains depends on the anatomy we started from, how the suture responds, nasal factors that belong to an ENT physician, and how consistently the appliance is activated. We will not promise a result.
What does MARPE feel like, and what does it ask of me day to day?
MARPE asks a few seconds of your day and the discipline not to skip them: activation is a small turn of a key at home. Most people describe pressure across the nose and cheeks for several minutes afterward rather than pain, though what you feel is your own and we would rather hear it than assume. Cleaning around the miniscrews becomes part of your routine, and speech and eating adapt within days.
What does MARPE cost in Las Vegas, and will insurance cover it?
We do not publish a MARPE fee, because an honest number depends on your anatomy, the appliance and the length of the active phase. What we commit to is the process. You receive the full cost in writing before anything begins, and no figure appears later that you did not agree to.
We accept most PPO dental insurance plans and are in network with a select few. Coverage for airway treatment is variable, because it sits between dental and medical benefits and the answer turns on your policy. We verify your plan and tell you what we find rather than what we hope. Payment plans and third party financing are reviewed at the consultation.
There is no rush on a first visit here. About two hours are reserved for every new patient, and Dr. Kevin sees one patient at a time, start to finish. You will talk through your sleep and your history, we will take the CBCT and the intraoral scan, and you will sit with your own images while he answers plainly whether MARPE fits. The studio is in Summerlin at 4205 S. Grand Canyon Dr. #19, next to Target at the Grand Canyon Shoppes, open Monday through Thursday, 8:00am to 5:00pm.
