The 21 year old sponsored by Covsupport, replaced Stephen Hughes in the second minute of Saturday's home game with Leicester and helped to change the game.
Said Thornton to the CT: "I went on and showed a bit of confidence and it is a fresh start for everyone. "We seemed to up our game and I felt I showed the manager what I am all about, so hopefully I have taken my chance and can keep my place."
"I was disappointed the last time I got a start, which was against Leicester at their place, because everything seemed to go wrong but hopefully I can take my chance now and play more games."