Multi-sector screw for combined transverse and anterior-posterior expansion. Three individual adjustable screws.

Same as Item # 19-521- 105, but the transverse screws open in the same direction.

Mandibular bow screw for transverse expansion of the mandibular anterior segment. Made of stainless steel

One piece fan-shaped expansion screw for asymmetric expansion of the maxilla

One piece fan-shaped expansion screw for asymmetric expansion of the maxilla

Simons expansion screw for horizontally separated activator. Yellow directional arrow.