Fig 7. Biofilm growth simulation for bi-bacterial biofilm with toxic substance.

Mean of 100 simulations in blue line with green star for the hours of experimental measurements, dotted lines for curves of minimum and maximum values, red diamonds for experimental data. (a) Initial proportion corresponding to the initialization of the mono-bacterial biofilms (36% for P. gingivalis: $N_0^{\left(1\right)}=144$, $N_0^{\left(2\right)}=261$) give a final proportion of 14% for P. gingivalis and 86% for S. gordonii, (b) Initial proportion of 2% for P. gingivalis ($N_0^{\left(1\right)}=7$, $N_0^{\left(2\right)}=315$) give a final proportion of 0.6% for P. gingivalis and 99.44% for S. gordonii.