The veteran stopper salvaged a point for the Turin club at the Stadio Olimpico on Monday night, and admitted that luck plays only a small part when it comes to spot-kicks
The veteran stopper blocked his fellow Italy international's effort in the second half to continue the Turin club's unbeaten record in Serie A this season with a 1-1 draw.
Although stating that luck plays a part in any penalty situation, he has also credited the save to the work done on the training field with his goalkeeping coach.
"It was a major incident," the 33-year-old told Gazetta Dello Sport.
"When there is a penalty to face, a little luck helps, but the daily hard work with [Claudio] Filippi on set-pieces was how I saved it."
Team-mate Claudio Marchisio was also full of praise for Buffon, who he feels was accountable for preserving Antonio Conte's men's unbeaten run.
"He is a great champion and he's showing it," Marchisio stated.
"And not just this year. He's in great shape, and the team got an important point in Rome due to him parrying Totti's effort.
"A goal could have meant defeat, we just drew. He had a great game," the midfielder concluded.
Juventus are level with Udinese on 30 points at the top of the Serie A table.