It was the first meeting of the season between the division rivals and the 76ers easily snapped Boston's five-game winning streak. Philadelphia leads the Celtics by two games at the top of the Atlantic Division.
Turner was given his first start of the year on Monday in a loss to Milwaukee and made only 1-of-12 from the field in that game.
He bounced back by hitting 11-of-19 field goal attempts and he also grabbed nine rebounds. The 76ers outscored Boston by 16 points in the opening period and were never threatened. Elton Brand added 18 points and Lou Williams had 14.
Philadelphia reached the 100-point mark for the second time in four contests after having not done so in 19 straight games.
Boston had little energy left after an overtime victory over Houston on Tuesday. The Celtics missed all eight of their 3-point attempts.
Paul Pierce led the Celtics with 16 points.
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