Table 7: Comparison of mean zone of inhibition for S. mutans between manuka (25%) and manuka (100%) honey

Organism

Honey

Mean

Standard deviation

Mean difference

t-value

p-value

S. mutans

Manuka 25%

14.4

1.3

–6.8

–7.3

<0.001

Manuka 100%

21.2

2.7