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The Orthodontic Palatal Expander is a fixed or removable intraoral appliance designed for slow or rapid expansion of the maxillary arch. It is commonly used in growing patients to correct transverse discrepancies, unilateral or bilateral posterior crossbites, and to create sufficient arch perimeter for alleviating crowding.
Key Types
Rapid Palatal Expander (RPE): Cemented to the molars with a mid-palatal screw, activated daily to separate the mid-palatal suture.
Slow Palatal Expander: Uses springs or screw with lower force, achieving skeletal expansion more physiologically.
Hybrid Expander: Combines skeletal anchorage (e.g., mini-implants) with conventional bands for minimal dental side effects.
Clinical Indications
Posterior crossbite due to maxillary constriction
Mild to moderate anterior crowding
Cleft palate patients needing arch expansion before bone grafting
Pre-adjustment for space closure or other orthodontic mechanics
Features & Benefits
Precision Screw System: Smooth activation with reliable torque and clear graduation marks for easy adjustment.
Biocompatible Materials: Medical-grade stainless steel and acrylic base, hypoallergenic and corrosion-resistant.
Customizable Design: Lab-fabricated from high-resolution models to ensure perfect fit on palatal contours.
Minimal Bulk: Low-profile structure to reduce speech interference and enhance patient comfort.
Retention Options: Adams cribs, ball clasps, or T-springs integrated for stable anchorage.
Clinical Protocol
Impression and bite registration taken
Appliance fabricated on working model
Patient adjusts screw as prescribed (e.g., 0.25 mm per day)
Regular follow-up to monitor expansion progress and suture opening
After desired expansion, appliance is kept passive for retention (3-6 months) or replaced with a removable retainer
Precautions
Soft diet is encouraged during active expansion
Maintain meticulous oral hygiene around bands and acrylic
Monitor for screw jamming or tissue impingement
Not indicated in patients with completed transverse growth unless combined with surgical assist
Packaging & Ordering
Each expander is individually sealed and sterilized. Orthodontic labs can specify screw type (e.g., Leone, Dentaurum), wire gauge, and acrylic color (clear, pink, or tooth-shaded).
Ordering Information: Provide stone models or digital STL files with desired expansion amount and screw activation protocol. Turnaround: 5-7 business days.
This product is an essential tool for interceptive and comprehensive orthodontic therapy, delivering predictable skeletal expansion with minimal patient discomfort.
