Teravainen extended the lead to 4-1 on the power play at 5:35 of the third period, bouncing a sharp-angle shot in off the skate of Oilers defenseman Darnell Nurse.
"We played a good team game. They lost their first one, too, so we knew they were going to go hard on us today," Teravainen said. "We played good defense, we battled for the pucks, blocked shots and Petr was good. And simple road hockey.
"We were just trying to make plays. We had been watching video and talking about what’s been going good and what’s been going wrong, so just better plays today."
Viktor Arvidsson appeared to score at 8:35 to pull Edmonton to within 4-2, but the goal was waved off after Chicago successfully challenged for goalie interference.
Draisaitl did make it 4-2 at 10:01 when he snapped in a cross-crease feed from Connor McDavid on the power play.
Teravainen scored his second power-play goal of the game at 19:13 for the 5-2 final.
Chicago was 3-for-3 with the man-advantage. Edmonton was 1-for-3.
"When you get some goals, you start playing with a little bit more confidence, and I think the power play showed that as well tonight," Blackhawks coach Luke Richardson said. "I thought the guys hung in there tight against a really strong, powerful offensive team, and obviously Petr was great for us again in the net."
NOTES: This was the second head-to-head meeting between Bedard and McDavid. McDavid had two assists and Bedard scored in the Oilers’ 4-1 win on Dec. 12, 2023. … The Blackhawks had lost six straight to the Oilers. … Nugent-Hopkins had an assist on Draisaitl’s goal for his 700th NHL point.