Monta Ellis added 13 points and nine assists for the Mavericks, who nearly squandered a 23-point second-half lead.
Indiana forward Danny Granger left the game with 4:05 left in the first quarter with a strained left calf and did not return.
He missed most of last season after having surgery on his left knee. He made 1 of 4 shots and scored three points before leaving.
Check out top NBA playoff moments from the past week, including the Toronto Raptors' victory over the Cleveland Cavaliers to tie their series 2-2 and the Oklahoma City Thunder's victory to claim a 3-1 lead in their series with the Golden State Warriors.
The Jump crew examines Steph Curry's game and wonder if the MVP is hiding something or if his game is hurt.
The Chicago Sun-Times reports Joakim Noah has been telling teammates he is ready to leave Chicago, while a league source stressed to ESPN that a "positive dialogue" between the parties continues.