Fig. 1

Lactobacillus suppresses P. gingivalis growth. Images were acquired after coculture of P. gingivalis with Lactobacillus for 4 days, using Olympus SZX9 at 10× magnification. The zone of inhibition was measured using ImageJ, n = 3. White lines indicate the inhibition zone. Prevention of P. gingivalis growth by Lactobacillus was shown to be species dependent. */#p < 0.05; **/##p < 0.01; ***/###p < 0.001, *- significance from L. brevis 30670 within each P. gingivalis strain, #- significance from WT W50 between the same Lactobacillus strain