The Morelli Nickel Titanium Reverse Curve of Spee Archwires Round are superelastic NiTi wires with a round cross-section and a pre-formed reverse curve of Spee. The accentuated curvature delivers intrusive force on the anterior segment and controlled extrusion on the posterior segment, opening deep bites while the round profile keeps the leveling phase free of torque expression.
Key Features
Pre-Formed Reverse Curve — the reverse curve of Spee is built into the wire, so bite opening starts as soon as the archwire is engaged, with no chairside bending.
Round Cross-Section — the circular profile does not fill the slot in the buccolingual dimension, allowing leveling and rotation control without engaging torque.
Superelastic Force Delivery — continuous, low and predictable force levels across a wide deflection range, with high spring back.
Bright Polished Surface — reduces friction at the wire-slot interface for smoother sliding mechanics.
Deformation Resistance — the wire holds its programmed shape throughout the appointment interval.
Arch-Specific Forms — each gauge is supplied in dedicated upper and lower arch forms.
Technical Specifications
Material: Superelastic NiTi (Nickel Titanium)
Wire Cross-Section: Round
Curvature: Reverse curve of Spee
Wire Sizes: Ø.012″ (0,30 mm), Ø.014″ (0,35 mm), Ø.016″ (0,40 mm), Ø.018″ (0,46 mm), Ø.020″ (0,50 mm)
Arch: Upper and Lower
Purpose: Bite opening, initial leveling and aligning, arch consolidation and expansion, deep and open bite correction
Certifications: FDA Approved, CE Approved, ISO 9001:2015, ISO 13485:2016
Country of Manufacture: Brazil
Package Includes: 10 Morelli Nickel Titanium Reverse Curve of Spee round archwires in the selected gauge and arch
Clinical Applications
Deep bite correction by simultaneous anterior intrusion and posterior extrusion in a single archwire.
Leveling of an accentuated curve of Spee in the early stage, when light and continuous forces are required.
Molar rotation control during arch consolidation and expansion, before rectangular wires are introduced.
Need bite opening from the very first archwire?
Start the case with the round reverse curve and move to the rectangular version when torque control becomes part of the plan.