The striker was handed the shirt number last week.
Ahead of Sunday's Super Cup with Lazio, Buffon remarked: “I think giving Dybala the Number 10 is a wonderful signal and it puts more responsibility on his shoulders. A talent like Dybala can honourably wear the Number 10 for Juventus and I don't know anyone else who could represent it better.
“We are happy and satisfied to be here playing another Italian Super Cup. I lived my life trying to extrapolate the positives from the negatives. I have a strange sense of euphoria and joy.
“Tomorrow is a new challenge and a very important test for us. I see the Juve defence much the same as other years, it's strong and will as always be a point of strength for us.
“We have everything in place to play a great game, which is what the event demands. Aside from the opponent, who in recent years always struggled against us, they had difficulty because we always respected them.
“We hope this trophy cabinet can get even fuller and we start the season on the right foot. There have been some changes and so it would be auspicious to begin well."