The Morelli Self-Ligating Interactive Stainless Steel Brackets .022 Roth use a Nitinol clip with elastic memory. The clip is interactive: passive on light round wires, engaging actively once a full-size wire is in the slot, so friction stays low during alignment and torque is expressed at the finish.
Key Features
Nitinol clip with elastic memory for interactive engagement
Anti-locking system for smooth clip opening and closing
Simple mechanism for efficient wire changes
Micro pin base for mechanical retention
Rounded body with curvature relief for patient comfort
Technical Specifications
Material: Stainless steel
Clip: Nitinol (nickel-titanium alloy)
Mechanism: Self-ligating, interactive
Prescription: Roth
Slot: .022″ × .028″ (0,56 × 0,71 mm)
Quantity: Single patient kit
Purpose: Correction of crowded or misaligned teeth (malocclusion)
Certifications: FDA Approved, CE Approved, ISO 9001:2015, ISO 13485:2016
Country of Manufacture: Brazil
Package Includes: 1 Morelli self-ligating interactive .022 Roth bracket single patient kit
Torque and Angulation
Upper central incisor (11/21): torque +12° · angulation +5° · length 2,9 mm
Upper lateral incisor (12/22): torque +8° · angulation +9° · length 2,9 mm
Upper canine (13/23): torque -2° · angulation +9° · length 3,0 mm
Upper first premolar (14/24): torque -7° · angulation 0° · length 3,0 mm
Upper second premolar (15/25): torque -7° · angulation 0° · length 3,0 mm
Lower central incisor (31/41): torque 0° · angulation 0° · length 2,7 mm
Lower lateral incisor (32/42): torque 0° · angulation 0° · length 2,7 mm
Lower canine (33/43): torque -11° · angulation +7° · length 3,0 mm
Lower first premolar (34/44): torque -17° · angulation 0° · length 3,0 mm
Lower second premolar (35/45): torque -22° · angulation 0° · length 3,0 mm
Clinical Applications
Fixed orthodontic treatment in the Roth prescription
Low-friction alignment and levelling
Torque expression on full-size wires at the finish
Interactive or Passive?
A passive clip never grips the wire, so torque has to come from elsewhere. The interactive clip switches itself on when the wire gets big enough — low friction while aligning, real torque at the finish.