What Is MARPE?
MARPE stands for Miniscrew Assisted Rapid Palatal Expansion. It is a specialized orthodontic treatment that widens a narrow upper jaw, or palate, using a small expander anchored to the roof of the mouth with a handful of tiny, temporary mini-implants, also called TADs, or temporary anchorage devices. Those mini-implants engage directly with bone, allowing the appliance to gently and gradually separate the mid-palatal suture and widen the jaw without the need for surgery.
Traditional palatal expanders work well in younger children, whose palates are still easy to widen because the suture connecting the two halves of the upper jaw has not fully fused. Once that suture matures, typically in the mid to late teen years and in adulthood, a conventional expander often is not enough to move the bone on its own, and expansion has historically required a surgical procedure, known as SARPE, or surgically assisted rapid palatal expansion, to loosen the suture first. MARPE offers a way to achieve meaningful skeletal expansion in many of these older patients without surgery, using the added anchorage of the mini-implants to do the work a traditional expander cannot.
Who Is a Candidate for MARPE?
MARPE is most often used for teenagers and young adults whose jaw growth has slowed or completed, when a narrow palate is contributing to one or more of the following:
- Crowded teeth with insufficient room for a healthy bite
- A narrow, high-arched palate
- A posterior crossbite, where the upper back teeth sit inside the lower back teeth
- Airway restriction or breathing difficulties linked to a narrow upper jaw
- Cases where traditional expansion was attempted too late to be fully effective
A thorough evaluation, including a 3D scan of the palate and suture maturation, helps our Pittsford team determine whether MARPE is the right fit, or whether a different approach would serve your treatment goals better.
Why Consider MARPE Instead of Surgery?
For patients who need palatal expansion but have outgrown the window for a conventional expander, MARPE offers real advantages over a surgical approach:
- No incisions and no surgical recovery, since the appliance is placed chairside
- Fewer risks than a surgical procedure performed under general anesthesia
- Lower cost and less disruption to daily life compared to a hospital-based surgery
- Effective skeletal, or bone-level, expansion rather than simply tipping the teeth, which can relapse more easily
This makes MARPE an appealing option for teens and young adults who need real widening of the jaw but want to avoid an operating room.
What to Expect During MARPE Treatment
- Evaluation and planning. We assess palate width, suture maturity, and airway using a 3D scan and clinical exam to confirm MARPE is appropriate.
- Placement. The custom expander is fitted and the mini-implants are placed chairside, using local anesthesia. Most patients describe the process as similar to getting a filling.
- Activation. You will turn the expander a small amount each day, or as directed, gradually widening the palate over several weeks.
- Stabilization. Once the desired width is reached, the appliance stays in place for a period of time to allow new bone to fill in and stabilize the expansion.
- Follow-up orthodontics. MARPE is often one phase of a broader orthodontic plan to align the bite once the palate has been widened.
Most patients tolerate the process well, with some initial pressure or mild discomfort after activations, similar to what is felt with traditional expanders or braces adjustments.
A Specialized Treatment Not Widely Available Locally
MARPE requires specific training and equipment, and it is not something every general or pediatric dental practice offers. Our Pittsford practice has invested in offering this treatment so that teens and young adults who need non-surgical expansion have that option close to home, rather than being referred out of the area or told surgery is the only path forward.
Why Choose Our Practice for MARPE
If a narrow palate is affecting your teen's bite, breathing, or facial development, MARPE may allow us to correct it without surgery. We will walk you through the evaluation, explain whether MARPE is a good fit, and outline exactly what treatment would involve, including cost and timeline, before moving forward.
If you would like to discuss this with our team, request an appointment or call us at 585-383-0640.