Broncos 31 to 20
On September 9, 2012, the Denver Broncos defeated the Steelers, 31-19.
The broncos won
Bengals, Broncos, Chargers, and Dolphins.
The Cowboys have did not play the Broncos in a regular season game, but did play in the preseason and the Broncos won it.
On December 23, 2012, the Bengals defeated the Steelers, 13-10.
On January 8, 2012, the Broncos and Steelers played at 4:30PM EST. The Broncos won the game, 29-23 in overtime.
The Bengals have never won a Super Bowl.
The last time the Broncos beat the Steelers was on September 9, 2012. The Broncos won the game, 31-19.
In the 2nd preseason game of 2009, the Cincinnati Bengals beat the New England Patriots 7-6.