The Morelli Stainless Steel Closed Coil Springs are supplied as a continuous chromium-nickel coil on a 1-meter length, wound with a closed pitch so that the spring loads in traction. Cut to the span required and stretched between two anchorage points, it delivers a light and continuous tensile force that draws them toward each other.
Key Features
Works in traction — stretched between two anchorage points, the coil pulls them toward one another
Closed-pitch coil — the turns sit against each other, so the spring loads in tension instead of compression
CrNi construction — chromium-nickel stainless steel wound as a closed coil
Sustained tensile load — the pull stays light and continuous instead of falling away as the coil shortens
Longer activation intervals — force is maintained between visits, so appointments can be spaced further apart
Supplied as a continuous roll — one 1-meter length covers several segments, cut to size at the chair
Technical Specifications
Material: CrNi (chromium-nickel stainless steel)
Type: Closed coil, traction
Length: 100 cm (39.4″) roll
Quantity: 1 roll
Purpose: Deliver tensile force for traction mechanics along the archwire
Certifications: FDA Approved, CE Approved, ISO 9001:2015, ISO 13485:2016
Country of Manufacture: Brazil
Package Includes: 1 Morelli stainless steel closed coil spring roll, 100 cm (39.4″)
Clinical Applications
Space closure — drawing teeth together along the archwire
Retraction mechanics — sustained traction applied between two anchorage points
Holding a space that has already been established
Closing space or applying traction along the arch?
Cut the length you need and load the coil in tension — a light and continuous pull that holds between appointments.