By GREG MENGELT
Langford, who drew an offensive foul moments before the 3-pointer, also had three rebounds in his 16 minutes of action.
The Celtics, who improve to 3-5 with the win, trailed 46-44 at halftime before a stellar defensive performance in the third quarter. Boston held the Magic (2-7) scoreless for the first 6 minutes of the third — after Orlando failed to score in the final 3 minutes and 42 seconds of the second period — and turned the 2-point deficit into a commanding 75-56 advantage heading into the final period.
The Celtics scored 16 consecutive points during the run.
Jaylen Brown led Boston with 28 points, 5 rebounds and 3 assists. Al Horford had a double-double for Boston with 12 points and 12 boards. Wendell Carter Jr. and Cole Anthony had 13 points apiece for Orlando, which shot just 27 of 84 (32.1 percent) in the defeat.
Langford and the Celtics stay in Florida for a showdown at Miami on Thursday. Tipoff is scheduled for 7:30 p.m. at FTX Arena.