Table 1.

Arrangement of the biofilms into eight different treatment groups.

Group	Growth medium supplement	Treatmenta
A1	No enzymes	0.05% CHX
A2	0.002mg/ml DNase I plus 0.1mg/ml proteinase K	0.05% CHX
B1	No enzymes	0.1% CHX
B2	0.002mg/ml DNase I plus 0.1mg/ml proteinase K	0.1% CHX
C1	No enzymes	0.2% CHX
C2	0.002mg/ml DNase I plus 0.1mg/ml proteinase K	0.2% CHX
D1	no enzymes	–
D2	0.002mg/ml DNase I plus 0.1mg/ml proteinase K	–

^a CHX treatment was performed at six different time points (16, 20, 24, 40, 44, 48h) for 1min each.