Nickel-Titanium Closed Coil Spring For TADs

The Morelli Nickel-Titanium Closed Coil Spring for TADs delivers a light, continuous 200 gf traction force for space closure supported by skeletal anchorage. Its eyelets are produced in Ø1,60 mm and Ø2,30 mm, with smooth edges and round holes, so the spring attaches directly to the head of a mini screw as well as to conventional hooks and accessories.

Key Features

• Built for mini screw anchorage — eyelets in Ø1,60 mm and Ø2,30 mm for attachment to the mini implant head

• Constant 200 gf traction — light and continuous force that allows longer activation intervals

• Nickel-titanium alloy — biocompatible, with elastic memory for predictable force delivery

• Four working lengths — 7, 9, 12 and 15 mm covering application ranges from 10 to 45 mm

• Smooth-edged round eyelets — atraumatic to the soft tissue and quick to seat

• Supplied in packs of 4 — all springs in the selected length

Technical Specifications

• Material: Nickel-titanium (NiTi)

• Type: Closed coil, traction

• Force: 200 gf

• Eyelet Diameters: Ø1,60 mm and Ø2,30 mm

• Lengths: 7 mm, 9 mm, 12 mm, 15 mm

• Range of Application: 7 mm — 10 to 15 mm; 9 mm — 15 to 25 mm; 12 mm — 25 to 35 mm; 15 mm — 35 to 45 mm

• Anchorage: Mini screws (TADs), hooks and accessories

• Purpose: Traction for space closure with skeletal anchorage

• Certifications: FDA Approved, CE Approved, ISO 9001:2015, ISO 13485:2016

• Country of Manufacture: Brazil

• Package Includes: 4 NiTi closed coil springs for mini screws, in the selected length

Clinical Applications

• Space closure with skeletal anchorage, with traction taken directly from the mini screw

• Retraction and distal movement without reciprocal anchorage loss

• Traction on impacted teeth anchored to a mini implant

Anchored to a mini screw or to the archwire?
Choose this spring whenever the traction is supported by a mini screw: the Ø2,30 mm eyelet seats on the implant head, while the Ø1,60 mm eyelet attaches to hooks and accessories on the archwire.