The Boston Celtics produced an exhibition of three-point shooting to blow away the Philadelphia 76ers 121-87 and square their Eastern Conference playoff series on Wednesday.

Jaylen Brown led a clinical offensive display for the second-seeded Celtics to swat aside a Sixers line-up who welcomed back newly crowned NBA Most Valuable Player Joel Embiid after an injury absence of nearly two weeks.

Brown finished with 25 points while Malcolm Brogdon poured in 23 from the bench, including six three-pointers, as the Celtics bounced back from Monday's game-one loss at the TD Garden.

The best-of-seven series is now level at 1-1 as the teams head to Philadelphia for game three on Friday.

After Wednesday's rout, Sixers coach Doc Rivers will have plenty of food for thought despite the mostly successful return of Embiid, who had not played since injuring his right knee in game three of the first-round sweep of Brooklyn.

Embiid made his presence felt with 15 points and five blocks but was clearly not at full fitness, before being removed from the fray in the third quarter as Boston surged into a commanding lead.

Boston meanwhile will be buoyed by a display that mixed defensive ruggedness with free-scoring offense.

"We just set the tone on defense, trying to be aggressive on both sides of the ball, getting our team-mates going. But really just setting the tone on defense and having fun," Celtics forward Brown said afterwards.

No fewer than eight Celtics players contributed to Boston's tally of 20 three-pointers from 51 attempts.

Philadelphia by contrast made only six of 30 from beyond the arc with their off-night underscored by James Harden's futile shooting from three-point range.