THREE goals in the opening 13 minutes set this game off with a bang.
Stephen Gleeson's rasping shot into the far corner caught Orient totally flat-footed on seven minutes.
Scott McGleish then showed a team is most vulnerable when it has just scored a goal, by stroking Jimmy Smith's pass low into the far corner from the edge of the area just two minutes later.
Sprung into life by shock Dons goal, Dean Cox then rattled the post with a stinging volley and Charlie Daniels tested keeper David Martin with a powerful drive.
It fell to Terrell Forbes to eek the hosts 2-1 up with 14 minutes on the clock when he headed in from Daniels' corner.
It lifted the centre-back onto personal best-ever figures of two goals in the campaign far.
Harry Kane then added to the firepower on the pitch when he came on for Dawson on 39 minutes.
The Spurs teenager played in midfield The skipper was forced off injured by a tangle with Dean Lewington The match settled down into a even affair played mostly in middle of the park.
The Dons hardly troubled Jones in goal with few chances carved out by them.
Ibehre drew fine diving save from the stopper on the stroke of half-time when he flicked on Gleesson's bending shot.
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