The Bucks, who stay top of the standings as a result of their win, were 10 points behind by halfway but Ersan Ilyasova led a fightback as he scored all 12 of his 18 points in the fourth quarter.
Richard Hamilton collected 30 points for the Bulls but had a chance to win it on the buzzer and missed.
Oklahoma City Thunder ran riot against the Charlotte Bobcats, who eventually went down 114-69.
The lead was an astonishing 64-24 after two quarters and 79-25 by the time the Thunder's starting side was pulled to the bench with the job done.
Kevin Durant closed with 18 points, Thabo Sefolosha added 14 and Russell Westbrook claimed a double-double as they secured victory.
The Memphis Grizzlies ensured they stay at the Southwest Division summit with an enviable 10-2 record thanks to an 84-78 win over the Cleveland Cavaliers.
Marc Gasol and Zach Randolph each claimed 19 points, while the Cavaliers' Anderson Varejao augmented 15 points with 22 rebounds.
Overtime was needed to prise apart the Brooklyn Nets and New York Knicks, with the former triumphing 96-89 to go level with their opponents on top of the Atlantic Division.
Brook Lopez made 22 points and 11 rebounds and Deron Williams claimed 16 points and 14 assists for the Nets, while Carmelo Anthony (35 points and 13 rebounds) scored heavily in a losing cause.
The Utah Jazz remain undefeated after six home games following a 105-103 win over the Denver Nuggets.
Al Jefferson's 28 points headlined a top-scoring affair for Utah, with Kenneth Faried's 21 points the most on the Denver side.
Another free-flowing contest saw the Detroit Pistons beat the Portland Trail Blazers 108-101 for only their fourth win of the season.
LaMarcus Aldridge impressed with 32 points but did not find sufficient back-up and ended up defeated by a Detroit side who were led by Brandon Knight's 26 points.
Twenty-six points separated the sides as the San Antonio Spurs saw off the winless Washington Wizards 118-92.
The Wizards now have a woeful record of 0-12 after seven players got into double figures for the victorious Spurs - Boris Diaw's 16-point haul the best of the bunch.
The Los Angeles Clippers slipped to a 105-98 defeat at the hands of the New Orleans Hornets despite the best efforts of Caron Butler, who weighed in with 33 points.
Greivis Vasquez was the winning side's top performer with 25 points and 10 assists.