Sector Expansion Screw Medium Angular 10pcs

Orthodontic sector expansion screw made of stainless steel with skeletonized cone-shaped holder and U-shaped guide pin bent downward. Features cross holes in the body for optimal acrylic retention and includes a standard straight expansion screwdriver. Designed for distalization and segmentation in removable orthodontic appliances, particularly for anterior segment protrusion, with a maximum expansion of 6.0mm (4 x 1/4 turns = 0.40mm per activation). Package contains 10 pieces.