The XD Expansion Screw is an essential orthodontic component manufactured from medical-grade stainless steel, developed specifically for arch widening, crossbite correction, and mid-palatal or mandibular expansion protocols.
Featuring dual heavy-duty guide pins alongside a central threaded activation spindle, this jackscrew ensures uniform force distribution without unwanted rotation, tilting, or binding during activation. Each unit comes pre-fitted with a removable flat blue plastic placement tab. This tab serves dual functions: it allows dental technicians to precisely orient and stabilize the screw in stone models during acrylic baseplate processing, while preventing liquid acrylic resin from entering the threaded mechanism. Once cured, the appliance is sectioned, the plastic tab is removed, and the expansion screw delivers smooth, turn-by-turn lateral movement via a standard orthodontic activation key.
Key Features
Rigid Dual-Pin Guidance: Equipped with two parallel guide pins to resist torsional stress and ensure stable, strictly linear expansion.
Integrated Processing Tab: Flat blue plastic spacer facilitates easy positioning on working casts and keeps acrylic from clogging the internal threading during laboratory fabrication.
Superior Acrylic Anchorage: Segmented metal bodies provide optimal retention grooves for solid mechanical interlock within auto-curing or heat-cured acrylic plates.
Medical-Grade Construction: Machined from high-strength, biocompatible, corrosion-resistant stainless steel.
Standard Key Activation: Features calibrated activation spindle holes compatible with standard 0.8 mm orthodontic turn keys.
00 Comments
Loading reviews...