Wilshere spent last season on loan at Bournemouth and has only recently returned from a broken leg.
But Arsenal boss Wenger was keen to “put this game into perspective”.
“I wanted to leave him on to give him 90 minutes and overall I think it was an ideal game for him to gain confidence and fitness,” he said.
“We’ll see after that how he responds. Normally he’s alright after the game.
“I think you have to put this game into perspective as well, it does not exactly have the intensity of a Premier League game. But it’s important for him to build him up gradually.”
Asked when Wilshere could start in the Premier League, Wenger said:
“I don’t know. I’ll go game by game.
“We play next week three games – Monday, Thursday, Sunday – before the international break so I will have to make decisions to balance the team, to see who I play and where.
“For me now he’s available to play, the decision I have to make is when to play him. But I think these kind of games he needs 90 minutes at that intensity and then he will soon be back. You see that in his movement, it is natural.
“After that, of course, everybody is looking at him because of course everybody expects him to come back to his best. I wish that as well.”
Wilshere’s contract is up at the end of the season, but Wenger refused to be drawn on the 25-year-old’s future, saying:
“Tonight is not the best moment to talk about that.”
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