I've provided comparison shots: the image on the top is from December 2006. The image below it was taken on Feb. 21, 2007, and has the power chain attached. The power chain makes the guide wire more 'invisible' in my opinion!
Again the top image is from December 2006. The image below it was taken on Feb. 21, 2007, and has the power chain attached.
Oh, and I'm still waiting for my Invisalign to come in!