DALLAS — Evgenii Dadonov scored twice for the Dallas Stars in a 7-2 win against the Boston Bruins at American Airlines Center on Thursday.

Oskar Back, Mason Marchment and Matt Duchene each had a goal and an assist, and Tyler Seguin had two assists for Dallas (10-5-0), which has scored seven goals in two straight games. Jake Oettinger made 23 saves.

“Back-to-back games with a lot of goals. Typically [we are] more of a high-scoring team, but that comes from good defensive play,” Seguin said. “For some of this year it’s been a little bit of games where we scored two or three and should have had five or six, and right now they’re going in.”

Charlie Coyle and David Pastrnak each scored for Boston (8-8-2), and Jeremy Swayman made 31 saves.

“They executed at a high level, and we didn’t match the execution,” Boston coach Jim Montgomery said. “It’s been frustrating all year that we haven’t been able to string together three or four consistent games where we feel like our habits and details are consistently there.”

Duchene scored to give Dallas a 1-0 lead 1:09 into the first period. Marchment protected the puck as he skated behind the net and then dropped it to Duchene at the left face-off circle.

“I think they did a good job getting a quick start. We weren’t ready for the push. That’s something we need to regroup on and identify moving forward,” Swayman said.

Dadonov made it 2-0 at 6:36 when he converted on a penalty shot after he was hooked on a breakaway by Boston defenseman Mason Lohrei.

“To be honest, I was pretty tired. I just opened my blade and see the hole and shoot,” Dadonov said. “We needed that bounce back after the Winnipeg game. Nice to score seven two games in a row, but it’s probably not going to be every game. We have to work on details. Every game starts 0-0.”

“I didn’t know he was that good on penalty shots,” Dallas coach Pete DeBoer said. “Big goal for us at that time, a 2-0 lead is really important for us. [Dadonov] is a guy that you can count on to show up and play, especially against big, heavy, hard teams. He’s not the biggest guy, but he’s got a big heart and big battle level.”

Coyle cut the lead to 2-1 at 17:48 when Trent Frederic found him charging to the net at the right post.

Logan Stankoven extended the lead to 3-1 at 14:15 in the second period when he picked up a rebound in front of the net.

“We lost every battle. Soft on the puck, soft everywhere. Not finishing checks. We just got embarrassed today,” Boston defenseman Nikita Zadorov said. “We take a step forward and take a step backwards. It’s hard to win in this league. There are good teams. They’re going to put you on your heels, and you got to deal with pressure.”

Back scored his first career NHL goal to make it 4-1 at 15:56 when he poked in a loose puck.

“That was a little ‘PK’ poke check. No, I don’t know what that was,” Back said. “I saw [Colin Blackwell] try to get the puck to me for like five seconds, from the blue line down to the hash marks. It was great that those guys were out on the ice with me, the guys I’ve been playing with.”

Dadonov made it 5-1 at 19:49 on a shot from the bottom of the left face-off circle.

Roope Hintz scored 47 seconds into the third period to make it 6-1 when he shoveled a loose puck that beat Swayman five-hole.

Pastrnak cut the lead to 6-2 at 3:35 on a shot from the high slot.

Marchment made it 7-2 at 17:19 on a one-timer from the right face-off dot.

“We’re going to make sure this is a building block for us, not a setback. That’s on us to do that,” Swayman said.

NOTES: Boston forward Tyler Johnson missed the game due to a family matter, Montgomery said. … Seguin got his 800th career point (358 goals, 442 assists) with an assist on Duchene’s goal.