Table 3 Estimated fold changes from no-intervention to all other interventions within each sample type for number of black colonies with 95% confidence intervals and p-values for significance (bold text)

Plaque: No Intervention / Chew B

3649.1

1624.9

8194.8

< 0.001

Plaque: No Intervention / Tooth brushing

38.3

16.9

86.9

< 0.001

Plaque: No Intervention / Chew A

5.1

2.3

11.2

< 0.001

Tongue: No Intervention / Chew B

15.0

6.6

34.1

< 0.001

Tongue: No Intervention / Tooth brushing

2.3

1.0

5.2

0.055

Tongue: No Intervention / Chew A

2.2

1.0

4.9

0.049