Confocal micrographs of Streptococcus mutans biofilms- control (no treatment) 1 min (A), 5 min (B) and 1 hour (C), treated with nanoemulsion 1 min (D), 5 min (E) and 1 hour (F), treated with Chlorhexidinedigluconate min (G), 5 min (H) and 1 hour (I). Each micrograph represents 3 optical sections- green, red and combined green and red from two channel images.