Table 3: In vitro comparison of the effect of the ethanolic extracts of propolis collected in Santiago de Chuco in the summer and autumn versus 0.12% chlorhexidine digluconate on the growth of Streptococcus mutans ATCC 25175.

Inhibition Halo (mm)
- Summer Autumn Positive Control (0.12% Chlorhexidine Digluconate)
Mean 18.2 26.4 13.0
SE 1.8 2.6 0.0
ANOVA: F 83.18
p 0.000
Dunnett’s a a b

Source: Data provided by the author.