I recently got my retainers on for my bottom teeth. The plastic mold was alittle tight on the right side of my gum. I went to the orthadontist and he shaved alittle off with a high speed filer thing. The area he shaved off is reallly ruff now and it is bothering my tongue. what can I do to make it alittle smoother???Ive tried to melt it to make it more liquidy but it made alot of ruff bubbles which didn't help.