MASPE/MARPE for Adults in San Jose: Non-Surgical Palatal Expansion for Better Breathing
If you've been told that you have a narrow upper jaw and your only option for widening it is surgery, there's a good chance you're missing a critical alternative. MARPE — miniscrew-assisted rapid palatal expansion — has changed the game for adults who need palate widening to relieve crowding, improve their bite, or open up their airway. And it does it without surgery.
Here's how MARPE works, who it's right for, and what to expect from treatment in San Jose.
What MARPE Is and How It Works
MARPE is a custom-fitted expander anchored to the palate using small mini-screws. The expander applies gentle, gradual pressure directly to the bone of the upper jaw, splitting the midpalatal suture (the seam down the center of the palate) and allowing the jaw to widen. As the bone separates, new bone fills in, and the result is a permanently wider upper jaw.
The key difference from a traditional palate expander is the anchor point. Conventional expanders push against the teeth, which works well in children whose palatal suture hasn't fused but causes problems in adults whose suture has hardened. MARPE bypasses the teeth entirely, applying force where it's actually needed: the bone.
Why Adults Can't Use Traditional Expanders
The midpalatal suture — the joint between the two halves of your upper jaw — fuses with age. In children, it's still flexible and responds to gentle pressure. By the late teens, it's begun to harden, and traditional expanders simply tip the teeth outward without actually moving the jaw. The result is dental compromise without skeletal benefit.
MARPE solves this by using mini-screws to apply force to the bone directly. Published clinical data shows success rates of 85 to 100 percent in young adults, with meaningful results well into middle age.
The Miniscrew Procedure Step-by-Step
The procedure is far less involved than most patients expect:
• Initial consultation with 3D imaging to evaluate your anatomy
• Custom fabrication of the MARPE appliance to your specific palate
• Placement appointment, usually 30-60 minutes, under local anesthesia
• Mini-screws are placed through the appliance into the palate, and the expander is secured
• You go home the same day with instructions for the daily turning protocol
From there, you turn the expander a small amount each day, following a precise schedule. You'll feel mild pressure but rarely pain. A small gap may appear between your front teeth — this is a sign the suture is opening, exactly as planned. The gap closes as treatment progresses.
Treatment Timeline
Active expansion typically takes a few weeks, depending on how much widening is needed. After active expansion, the appliance stays in place for four to six months while new bone forms in the suture and the result stabilizes. After removal, you'll often transition to braces, aligners, or a retainer to refine the bite and finish treatment.
Total treatment time, from MARPE placement to final result, is usually six to twelve months.
Effects on Airway and Sleep
This is where MARPE shines for the right patient. Widening the upper jaw also widens the floor of the nose, which increases nasal airway volume. For adults with sleep apnea, snoring, or upper airway resistance syndrome related to a narrow palate, this can produce significant improvements in breathing, sleep quality, and daytime energy.
Published clinical trials have documented reductions in apnea-hypopnea index, improved sleep questionnaires, and reduced sleep-related bruxism after MARPE treatment in adults. We've seen the same results in our own practice.
Cost and What to Expect
MARPE is a significant investment, generally ranging from $3,500 to $6,000, with additional cost for any orthodontic treatment that follows. We offer financing options to make it manageable. Some medical insurance plans cover MARPE when it's prescribed for documented sleep apnea, and we help patients pursue that coverage when it applies.
If you've been told your only option for palate widening is surgery, get a second opinion. MARPE may be exactly what you've been looking for.
→ Request a MARPE consultation: (408) 516-1432
Joint & Airway Analytics | 385 S. Monroe Street, San Jose, CA 95128 | (408) 516-1432