I bought these about a month ago. I had no problem removing Invisalign for the first month, but once I put on the attachments (there were a lot of them), I had trouble pulling the mouthguard out. The floor in particular was almost impossible. I've tried other things (I've used a Sunkist orange peeler to scoop out the bottom peels with some success, but it was a bit awkward and sometimes painful). I decided to give them a try and I'm so glad I did! I keep one at home in the bathroom, one in my travel bag in my purse and one on my desk. I'll save the other 4 for later. I was able to pull out the lower shells immediately without any problems, at first I had a little trouble finding the right place to attach the hook at the top. I kept trying because I liked not having to put all my fingers in my mouth to get the trays out. After a few weeks, I can get them out in a matter of seconds, usually on the first try from the top and bottom. I had absolutely no breakage issues or concerns about durability. Like I said, my aligner was very hard to come by before, but with this tool, it's a breeze. If you're having trouble removing your aligners, give them a try! **UPDATE 7/26/16: Almost a year later, I still use them every day, every time I take off my Invisaligns. I haven't had any breakdowns and I still can't do without it! My orthodontist also started wearing them after I showed them. :)**UPDATE 2/23/17: I still use them every day and now carry a spare in my purse for the days when my amenity kit doesn't return to my purse. I haven't lost or broken anything. Eventually I transitioned to using the pull side from both the top and bottom, as pressing from the bottom was problematic and sometimes painful. My daughter just used this last night (she has regular braces) to take off her bands because she just got a manicure and didn't want to put her pretty nails in her mouth (she was trying to persuade me to do her rip off for her to lose weight - phew). I still fully support them and encourage others to try them!
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