Does Anyone else Have Indentations on Their Teeth Caused by an Invisalign Tray?

I know that enamel is tough but I believe that the pressure of the tray on my tooth has caused an indentation on one of my front teeth which was definitely not there before. The indentation is in exactly the same place as the contour of the tray. It was definitely not there before I began treatment and I have photos to confirm this. I suppose I will have to have some bonding to fix it - should my dentist have told me about this possibility and be responsible for fixing it?