Liz. Invisalign Day 19. I thought that it might be helpful to show what my trays no 2 actually look like….sparkling and clean after their now daily soak “ting” The upper tray has more work to do as my arch is very narrow especially at the back and will take months to widen out, some teeth have become compressed inwards and I tend to play with one tooth with my tongue all the time. I took a nail file to the bottom tray this morning as it was horribly stratchy and wow what a difference, smoothing off the plastic meant that I no longer feel so horribly aware of the tray in my mouth, so I might go and buy a range of files of different smoothness to really take the edges off. For the price I would have hoped that the trays would not be sent out with such sharp edges. I wonder if this could be a regular requirement? I am also beginning to realise how important it is to wash hands thoroughly as taking the trays in and out could be a great way of picking up bugs, so many things to think about….