It seems like there is great potential for this material. As always, these material developments and new attachments do not change the most important factor in successful treatment, namely, the experience of the doctor in moving your teeth using Invisalign.
Here is the release:
New! SmartTrack™ Aligner Material
The introduction of Nickel Titanium wire revolutionized fixed orthodontics with gentle, more constant force delivery. Now Invisalign introduces SmartTrack™, a highly elastic aligner material that delivers gentle, more constant force to improve control of tooth movements with aligner treatment.