Pittsburgh won 4-2 and leads the best-of-7 series 3-1 with Game 5 on Friday at Consol Energy Center (7 p.m. ET; CBC, RDS, NBCSN).
Orpik's absence reduced Pittsburgh to five defensemen. Paul Martin played 30:05, and Kris Letang played 27:56.
Orpik was making his first appearance in six games after sustaining an undisclosed injury in the Eastern Conference First Round series against the Columbus Blue Jackets. He played nine shifts in the first period, but the last one lasted seven seconds, ending at 18:23.
There's no discouragement in that room. There's no issues there at all to be honest with you. It's more about, 'Hey, it's opportunities for players.' And if we become that bad of a team because of one player, it's not a real good sign for our hockey club. So this is part of sports. It's part of hockey.
— Bruins coach Claude Julien on the loss of Zdeno Chara to injury