BOSTON — Matt Duchene and Tyler Seguin each had a goal and two assists for the Dallas Stars in a 5-2 win against the Boston Bruins at TD Garden on Thursday.

Mason Marchment had two assists, and Casey DeSmith made 25 saves for Dallas (6-2-0). Jason Robertson scored in his 300th NHL game.

The Stars scored three power-play goals in the second period, which tied a team record for most in a single period since the franchise’s move to Dallas in 1993.

David Pastrnak and Justin Brazeau scored, and Jeremy Swayman made 27 saves for Boston (3-4-1), which has lost three straight (0-2-1).

Pastrnak gave the Bruins a 1-0 lead at 11:57 of the first period during 4-on-4 play. Matthew Poitras intercepted Stars defenseman Mathew Dumba’s pass behind the net before teeing up Pastrnak for a one-timer in the slot.

Duchene tied it 1-1 at 16:20 of the first, taking Seguin’s cross-ice pass wide and elevating the puck past Swayman.

Robertson gave the Stars a 2-1 lead 31 seconds into the second period, finishing off Jamie Benn’s behind-the-net feed on the power play.

Logan Stankoven made it 3-1 at 4:57 of the second with another power-play goal. Duchene skated in unimpeded from the left side, finding him in front.

Seguin pushed it to 4-1 with another power-play goal at 8:59 after he was left open with plenty of space on the right side to beat Swayman with a wrister.

Brazeau cut it to 4-2 at 10:41 on the power play, finishing off Trent Frederic’s wraparound attempt.

The Bruins outshot the Stars 10-7 in the third period, but Roope Hintz scored an empty-net goal for Dallas at 17:58 for the 5-2 final.