You were told a narrow jaw meant surgery. It doesn’t have to.
If you or your teen has a narrow upper jaw, a crossbite, crowded teeth with no room to spare, or you’ve simply outgrown what a traditional expander can do, MARPE (Miniscrew-Assisted Rapid Palatal Expansion) may be the answer. It’s a research-backed, non-surgical way to widen the maxilla, even after the jaw has finished growing, using a custom, miniscrew-anchored appliance offered right here at Star Orthodontics.
MARPE stands for Miniscrew-Assisted Rapid Palatal Expansion. It’s an advanced version of the classic childhood palatal expander, built for patients whose midpalatal suture, the seam running down the center of the roof of the mouth, has already started to fuse. That typically happens in the mid-to-late teen years, which is exactly why traditional, tooth-borne expanders stop working as well once a patient reaches that stage.
Instead of relying on the teeth to push the jaw apart, MARPE anchors directly into the bone of the palate using a small number of temporary miniscrews (also called temporary anchorage devices, or TADs). Because the force is applied to the bone itself rather than through the teeth, MARPE can achieve true skeletal expansion, actually widening the upper jaw, with far less unwanted tooth tipping than older tooth-borne designs.
This isn’t a fringe technique. It was first documented in a landmark 2010 case and has since been studied extensively in the peer-reviewed orthodontic literature, including systematic reviews and meta-analyses evaluating its safety, predictability, and long-term stability.
MARPE is most often recommended for older teens and adults, patients whose jaw growth has slowed or stopped, who are dealing with one or more of the following:
The best way to know if MARPE is right for you is a consultation with Dr. Robertson, who will review your growth stage, palate width, and airway with 3D imaging before recommending a treatment path.
MARPE is one of the more thoroughly studied developments in modern orthodontics, and we want you to see the evidence for yourself, not just take our word for it:
A widely cited review in the Dental Press Journal of Orthodontics (Suzuki et al., 2016) examined the biomechanics of the midpalatal suture and how miniscrew-anchored expanders are designed to achieve more purely orthopedic (skeletal, bone-level) movement compared with older expansion methods.
A 2021 systematic review and meta-analysis in the European Journal of Orthodontics evaluated MARPE’s efficacy specifically in late adolescents and adults, supporting it as an effective, minimally invasive alternative to surgically assisted expansion for many patients.
More recent scoping reviews (2023–2024) have continued to compare MARPE with traditional expanders like the Hyrax appliance, generally finding greater predictability and fewer dental side effects with miniscrew anchorage, while also noting that, as with any procedure involving miniscrews, a small proportion of patients can experience complications such as screw discomfort or minor tissue irritation, which is why careful case selection and an experienced provider matter.
We believe in giving you the full, honest picture, the benefits and the realistic limitations, so you can make an informed decision together with Dr. Robertson.
Sources:
Suzuki H, Moon W, Previdente LH, Suzuki SS, Garcez AS, Consolaro A. “Miniscrew-assisted rapid palatal expander (MARPE): the quest for pure orthopedic movement.” Dental Press J Orthod. 2016;21(4):17-23.
Kapetanović A, Theodorou CI, Bergé SJ. “Efficacy of miniscrew-assisted rapid palatal expansion (MARPE) in late adolescents and adults: a systematic review and meta-analysis.” Eur J Orthod. 2021;43:313-323.
Dr. Roxanne Robertson, D.D.S., M.S., has practiced orthodontics since 1996 and has treated more than 30,000 patients from our Corpus Christi office. Every MARPE case is planned and monitored personally, supported by digital scanning technology, so treatment stays precise from the first scan to the final result.
Don’t take our word for it. Here’s what real patients of Star Orthodontics have experienced:
Star Orthodontics is a leading orthodontic practice in Corpus Christi.
If you’ve been told jaw surgery is your only option, come talk to us first.
and find out whether MARPE could give you a wider, healthier smile without it.
Call: (361) 992-2483
Most patients feel pressure rather than pain, both during miniscrew placement (done with local anesthetic) and during the activation phase. Mild soreness for a day or two after activations is common and manageable with over-the-counter pain relief.
Active expansion typically takes several weeks, followed by a stabilization period where the appliance stays in place while new bone forms. Total timing varies by patient and is confirmed at your consultation.
No. MARPE is most valuable for older teens and adults whose midpalatal suture has begun to fuse, which is exactly the group traditional expanders struggle to help. Younger children with fully open sutures typically do well with a traditional expander instead.
A wider palate can increase nasal airway volume, and some patients report easier breathing after treatment. MARPE is not a standalone sleep apnea treatment, and we’ll refer you to an ENT or sleep specialist when airway concerns are significant.
Often, yes. MARPE creates the skeletal foundation and space; braces or Invisalign are typically used afterward to align the teeth within that newly widened arch.