Figure 3

Representative surface and cross-sectional confocal laser scanning microscope images of biofilm formed on the resin composites. (A) in situ biofilm. (B,C) Biofilms formed after incubation with artificial saliva in the assembled bioreactor at AS/sc180 (B) and BHI/sc180 (C). AS, artificial saliva. BHI, Brain heart infusion broth. Scale bar 100 μm.