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Three‐dimensional reconstruction of CLSM scans of natural multispecies biofilms grown from an infected root canal sample on dentine for 3 weeks: (a) untreated control, (b) after treatment with 2.5% NaOCl for 1 min, (c) after treatment with 0.2% cetrimide for 1 min. Green‐coloured bacteria are cells with intact membranes and red‐coloured bacteria are cells with damaged membranes following Live/Dead staining (BacLight; Invitrogen)
