What can I do for Invisalign sharp edges?

Based on the description you've provided, I would caution against the silicone, unless the package contents read that it is same for human consumption.  Over my ten years in cosmetic dentistry, I've had a lot of cases where I needed to trim and then smooth the rough edges of the clear aligner.  Usually, your dentist can trim the edges enough to provide instant relief, but if he or she was unable to do that after one try in-office, I would return to have them make another adjustment.  Often times, the dentist has the ability to eliminate this issue for you.  Good luck to you and I hope this helps. "Follow" me on Real Self to ask more questions of me.Sarah Thompson, DMD O'Fallon, IL and St. Louis, MO

What a good idea you have - clear silicone on the edges.  Never tried - let us know how it goes. I recommend an emery board or nail file and filing down rough edges. Remember you need to let your tongue heal (if scratched  or sore) or else either treatment might not work. It will mean not wearing your tray for a day or two.  Best of luck to you!