A necessity with an expander!!
My son, age 8, got his expander last week. I had ordered a few of these in advance as I had ordered items from Denta Kit a few years ago for my own braces. The orthodontist gave my son a little brush to get the stuck food out of the expander, but my son tells me it doesn't work. He absolutely loves this Lil Palates Sweeper. I am back to order a few more! He needs one at home, in my purse, in his backpack, and a couple of backups. They wash nicely with dish soap and water too.