MARPE stands for miniscrew-assisted rapid palatal expansion. It widens the upper jaw in patients whose palatal suture has fused, using small bone anchors to transfer force into the bone itself rather than onto the teeth. For adults, it is an alternative to the surgical expansion that used to be the only option. Dr. Wakas Abdulrazzaq performs MARPE at The Orthodontic Gallery in Riverview.
If you have been told that widening your upper jaw as an adult means surgery, MARPE may offer a non-surgical option.
Why Adult Expansion Used to Require Surgery
A child’s upper jaw is two bones joined down the middle by a growth suture. A conventional expander pushes the two halves apart at that seam, and it works quickly and comfortably because the seam is still open.
Somewhere in the late teens or twenties, that suture fuses. Push on a conventional expander after that and the force goes into the teeth instead of the bone. The teeth tip outward, the gums recede, and the jaw itself does not widen. This is why the standard advice for adults was surgically assisted expansion, known as SARPE, which is a real operation involving cuts in the bone under general anesthesia.
What MARPE Does Differently
MARPE uses an expander anchored to the palate by four small titanium miniscrews rather than to the back teeth. Because the force is applied directly to bone, it can separate a fused or partly fused suture without cutting it.
The appliance is fitted in an appointment that takes under an hour, with the placement site numbed. You turn a small key at home on a schedule we give you, usually once or twice a day for two to four weeks. Most patients see a gap appear between the upper front teeth within the first week or two, which is the visible confirmation that the bone is separating rather than the teeth tipping. That gap closes on its own or with braces afterward.
Once the target width is reached, the appliance stays in place for several months while new bone fills the space. Removing it early undoes the work.
What Expansion Achieves
- Room for the teeth. A wider arch can resolve crowding without extracting premolars in some cases.
- Correcting a crossbite. A narrow upper jaw that sits inside the lower one causes the bite to shift sideways. Widening it fixes the cause rather than compensating with tooth movement.
- A wider smile. Narrow arches produce dark spaces at the corners of a smile. Expansion fills them.
- More nasal floor and tongue space. The roof of the mouth is the floor of the nose, so widening one widens the other, and the tongue gains room to sit higher. These are physical changes in dimension, and they are a genuine added benefit of the treatment.
They are not a sleep-disorder treatment, and we make no claims of that kind. See airway-focused orthodontics for how we handle that topic.
Who Is a Candidate
Teenagers and adults with a narrow upper jaw, whose growth is complete. In practice, we see good outcomes well into the thirties, and the technique has been used successfully in patients older than that.
Age matters less than bone. We assess how fused and dense the suture is, and that is visible on a cone beam scan. Two forty-year-olds can be entirely different cases. Some patients are better served by SARPE, and we will say so and refer rather than attempt something that will not work.
Not suitable if: there is insufficient bone in the palate for the miniscrews, if there is active gum disease, or if the case genuinely needs jaw surgery for other reasons anyway.
What It Is Like
Fitting is not painful. There is pressure for the first few days of turning, and a feeling of tightness across the bridge of the nose and under the eyes that patients describe as odd rather than sore. Speech takes a few days to adjust to and eating takes about a week.
The visible midline gap is the part that surprises people, so we show photographs of it at the consultation before anything begins. It is temporary and it is the sign the treatment is working.
Frequently Asked Questions About MARPE
What qualifies you for MARPE?
A narrow upper jaw, completed growth, healthy gums, and enough bone in the palate to hold the miniscrews. Teens and adults into their thirties are routine candidates, and older patients are assessed individually. The decision comes from a cone beam scan of your palate, not from your age on a form.
Can a 17-year-old get MARPE?
Yes, and seventeen is often an easier case than thirty, because the suture is usually less fused. In some seventeen-year-olds a conventional expander still works and MARPE is unnecessary, which we would tell you. The scan settles it.
Is SARPE or MARPE more expensive?
SARPE is substantially more expensive overall, because it is surgery. It involves an oral surgeon’s fee, anesthesia, an operating facility, and recovery time away from work, on top of the orthodontic treatment. MARPE is an orthodontic procedure done in our office, and the total is lower by a wide margin. We give you a written figure for your case after the examination.
Does MARPE hurt?
Placement is done with the area numbed and is not painful. The turning phase produces pressure rather than pain, felt across the nose and cheekbones, and most patients manage with over-the-counter pain relief on the first couple of days. The most common complaint is that it feels strange, not that it hurts.
How long does MARPE treatment take?
Active turning is usually two to four weeks. The appliance then stays in place for several months while bone fills the widened suture, commonly four to six. Braces or aligners typically run alongside or afterward, so the full treatment is measured in the same terms as any comprehensive case.
Ask Whether Expansion Would Work for You
A free consultation includes an examination and the imaging needed to give you a real answer, including whether MARPE, conventional expansion, or surgical expansion is the right route. Call 813-867-0414 or request an appointment. We are at 10061 Beach Verbena Drive in Riverview, serving the Tampa area.