Available in 3D Printing?
- Yes
Arch Options
- Upper Arch
Anchorage Types
- Bands
- ROCS
- Crowns
Screw Options
- N/A
The “W” arch or Porter arch uses a 0.36-inch stainless steel wire for expansion. The wire is soldered to bands on the upper first molars.
The appliance can be constructed as a fixed removable that slides into sheaths on the upper first molar bands. Unilateral expansion can be achieved with proper activation.