Gerald Green starts in place of Amir Johnson for Celtics in Game 2

BOSTON — The Celtics started veteran guard Gerald Green in place of Amir Johnson in Game 2 of the Eastern Conference finals on Friday night against the Cleveland Cavaliers.

“Gerald, specifically, has been ready when called upon all year in a unique year, right, for him,” Boston coach Brad Stevens said before tipoff. “He got hurt in training camp, didn’t hardly play at all until Christmas, played in the Christmas Day game, and then played a lot while Avery [Bradley] was out, but didn’t play a lot in March. But he’s always been ready, and he always stays ready.”

Stevens went to Green in the team’s first-round matchup against the Chicago Bulls when Boston fell behind 2-0. The Celtics won the next four games to capture the series.

Green started twice in the second-round series against the Washington Wizards, with Boston winning in Game 1 but losing in Game 3. Johnson started the other five games of that series.

Green did not play in the final two games against Washington, but he logged 13 minutes in Wednesday’s Game 1 against Cleveland, when Boston showed some of its best energy of the night. He scored 11 points behind 3 of 5 shooting from long range.

Cleveland coach Ty Lue said that with the Cavaliers trying to force the ball out of Isaiah Thomas’ hands, it was smart of Boston to put another shooter such as Green on the floor.

The Cavaliers lead the best-of-seven series 1-0.

Celtics’ Isaiah Thomas undergoes dental work on tooth, has custom mouthguards

BOSTON — Celtics coach Brad Stevens said Isaiah Thomas, who is in the starting lineup for Tuesday night’s Game 2 against the Washington Wizards, underwent intensive dental work.

Thomas had one of his left front teeth ejected in the first quarter of Boston’s Game 1 victory Sunday. An initial attempt to reposition the tooth by team doctors at the arena was unsuccessful, but that didn’t deter Thomas from scoring a game-high 33 points as Boston rallied from a 17-point deficit to win.

Thomas missed practice on Monday while undergoing oral surgery, and Stevens said he believes the All-Star point guard had to undergo more work before Tuesday’s game, in part because the damage was more than just the lost tooth.

“The tooth that was knocked out was not the only one that was affected. So he had some other issues there,” Stevens said. “So he was in getting oral surgery [Monday]. A few hours after practice ended, he came by the office for a minute, but was still … I don’t know if he went back to the dentist’s today or went to the hospital today just to work on it some more, but he’s continued to have some work on it.

“He’s good to go [in Game 2], but he’s still in a pretty good deal of pain. He’s got a swollen mouth. But they say that he’s doing really well from a recovery standpoint, which is positive.”

Stevens said Thomas was fitted for custom mouthguards for additional protection so soon after oral surgery.

“That will be strongly encouraged,” Stevens said. “And sometimes when guys are strongly encouraged to wear those, they wear them. And sometimes they throw them. So we’ll see.”

Thomas, playing on what would have been the 23rd birthday of his late sister Chyna, was seen interacting with his son, Jaiden, before Tuesday’s game. That included engaging in a lighthearted news conference before Stevens and Wizards coach Scott Brooks took to the podium for their pregame sessions.