Lazio on Saturday night succeeded in holding out for more than an hour with 10 men before an own goal by defender Mario Gila led to a defeat.
Defender Alessio Romagnoli was issued a red card in the 24th for tackling Juve's Pierre Kalulu when he was clear on goal.
Despite the numerical disadvantage, Juventus obtained their winning goal when Gila attempted to intercept a cross from Juan Cabal and turned it into his own net.
The Bianconeri returned at the top of the Serie A table for a night, reaching Napoli as the side is playing against Empoli on Sunday while Inter will face Roma at the Stadio Olimpico.
Milan also suffered before beating Udinese 1-0 at home on Saturday night.
The Rossoneri moved level on points with third-placed Inter Milan.
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