Expansion & Arch Development
E-Arch (Arnold Expander)
Spring-loaded split lingual arch telescoping inside a tube, seated in lingual sheaths on molar bands.
FixedScan or impression
Learn moreStart a case
Expansion & Arch Development
Bonded RPE
Rapid palatal expander with the screw carried in bonded occlusal acrylic rather than bands.
Fixed · Scan or impression
Send us a case
Scan or impressions, a bite where the design needs one, and a signed prescription. If anything on the Rx is left open, a technician calls your practice before the case is started.
Download the Rx form or call 866-437-4361.
Rapid palatal expander with the screw carried in bonded occlusal acrylic rather than bands.
Built to your prescription. If anything on it is open to interpretation, we call you before we start.
You specify
- Arch and, where it applies, which side is active
- Abutment teeth and band positions
- Wire gauge and framework extension
- Whether the framework is soldered or seats in lingual sheaths
- Anything you want a technician to call about before we start
Related appliances
All Fixed3D bands available Expansion & Arch Development
Frozat
Wire-and-acrylic expansion design fabricated to the prescribed configuration.
RemovableScan or impressionLearn moreStart a case3D bands available 
Expansion & Arch Development
Haas
Expander with palatal acrylic pads flanking the screw, soldered to banded abutments.
FixedScan or impressionLearn moreStart a case