The Turin giants recorded their first win in the League since September 20, beating Siena 1-0.
"Further to the three points, we have rediscovered our own characteristics, which means we are returning to our best levels," Trezeguet said.
"I came close to scoring, but I didn't because I was stopped for being offside too many times. I am happy for Amauri who scored.
"Now we go back to Turin happy and can start to think about Wednesday evening's match against Sampdoria.
"Winning games like that against Siena is always difficult. They are a very defensive team. We have played a very determined game under a physical and psychological aspect.
"Goals from the other strikers will arrive soon. The important thing is to think positive."