Three Dimensional Screw acc. to Steiner – Two Movements
৳ 0
Material: Stainless steel
- strengthened guides
- individually adjustable middle bar for adapting to different palatal vault curvatures
- two independently controlled movements (symmetrical transverse expansion)
- same total expansion per segment
With expansion screw key straight, small – standard.
Indication: for combined transverse and protrusion movements with Y plates
| Directional arrow | |
| Maximum expansion | 4.0 mm/segment |
| 4 x 1/4 turn | 0.35 mm/segment |

















