Sophomore Sam Brittain (Calgary, Alberta) stopped a career-high 38 shots and Drew Shore (Denver, Colo.) also scored as the Pioneers improve to 21-11-4, 16-8-4 WCHA with its third consecutive win and second road sweep of the season.
"We made a couple final thrusts into their zone and got a call, a penalty, by just driving to the net, and certainly made the most of that opportunity," DU head coach George Gwozdecky said. "No question, a loss would have hurt us. Even a tie would have been OK. But to be able to get a win was very important."
Denver is the No. 3 seed for the WCHA Playoffs and will host Bemidji State or Wisconsin next weekend in the first round of the WCHA Playoffs.
Doremus buried a Jason Zucker (Las Vegas) feed from the left faceoff circle on a rush for the game-winner. DU took advantage of a late UNO penalty in regulation and pulled Brittain for a 6-on-4 advantage as Salazar sent the game into overtime with a wrist shot from the right faceoff circle. Nick Shore (Denver, Colo.) set up Salazar's game-tying goal and earned the second assist on Doremus' game-winner.
Nebraska Omaha's Andrej Sustr broke a 1-1 tie at 10:42 of the third period with a wrist shot from the left faceoff circle. Ryan Walters and Brian O'Rourke earned the assists.
Jayson Megna beat Brittain on a shorthanded breakaway at 14:12 to tie the score at 1-1. Matt White earned the single assist.
Zucker, Nick Shore and Salazar each enjoyed two-point games for Denver and John Faulkner took the loss with 26 saves for Nebraska Omaha.
Nebraska Omaha (14-16-6, 11-12-5 WCHA) outshot Denver 40-29, but went 0-for-3 on the power play. Denver was 1-for-6 on the power play.
Notes: Denver is 11th in the PairWise Rankings. Tickets for the first round of the WCHA Playoffs (March 9-11) start as low as $18 and can be ordered online at DenverPioneers.com/tickets, by calling 303-871-2336 or in person at the Ritchie Center Box Office.