Nickel-Titanium Closed Spring

The Morelli Nickel-Titanium Closed Spring delivers a light, continuous 200 gf traction force to close spaces between brackets without periodontal stress. Its Ø1,60 mm eyelets have smooth edges and round holes, prepared for quick adaptation to hooks, brackets and accessories on the archwire.

Key Features

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

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

• Ø1,60 mm eyelets — sized for hooks, brackets and archwire accessories

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

• Smooth edges and round holes — 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 Diameter: Ø1,60 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: Hooks, brackets and archwire accessories

• Purpose: Traction to close spaces between brackets

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

• Country of Manufacture: Brazil

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

Clinical Applications

• Space closure between brackets and individual tooth retraction

• Distal movement of teeth along the archwire

• Traction on impacted teeth anchored to the arch

Where does this spring anchor?
Choose it for bracket-to-bracket mechanics: the Ø1,60 mm eyelets seat on hooks, brackets and archwire accessories, delivering a constant 200 gf traction.