Fine horizontal lines in aligners

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#1 Post by **Over50** » Sat Feb 23, 2008 7:34 am

I just received my aligners, and have noticed that there are fine, horizontal lines, (like a topographic map would have to mark the contours) on the aligners. I am guessing that these lines are actually the "map" of the contours developed from the 3-D image of the teeth. I have 4 sets in my possession (only on the first, but the others are visable through the packaging) and I can see that this is on all of them. If I look at the aligners (when they are on my teeth) in a mirror with magnification, I can see the lines, but I don't think they are visable to others when I am talking. Has anyone else noticed this? I didn't know if it is a new process Invisalign is using (possibly for strength?) or if I have defective aligners.

#2 Post by **Devushka** » Sat Feb 23, 2008 12:49 pm

Those lines are normal. I have seen pictures on flickr from years ago of the aligners and they had the lines on them as well, so I think they have always had them on there. Trust me, no one can see the lines. If you can only see them with magnification and I am guessing really good light, people in regular conditions won't see the aligners themselves- let alone the tiny lines on them.

Congrats on getting your aligners! You must be so exited to be starting

#3 Post by **nogota** » Mon Feb 25, 2008 3:02 pm

I am on tray 10 of 20 and they have all had that. I promise, no one has noticed

#4 Post by **blair** » Mon Feb 25, 2008 8:37 pm

I'm on tray 29 and I've never noticed the lines in my own trays.

#5 Post by **Devushka** » Mon Feb 25, 2008 9:17 pm

blair, yours don't look like these up close?

http://www.flickr.com/photos/chairface/412172463/

#6 Post by **blair** » Tue Feb 26, 2008 2:43 pm

Yes, they do; I suppose I was thinking of something else. At any rate, they're really not visible to anyone except you, and I can't even really see them on myself once they're in my mouth.