Clinical and Antimicrobial Evaluation of Copaifera langsdorffii Desf. Dental Varnish in Children: A Clinical Study

Table 2

Amount of Streptococcus mutans, expressed as the logarithm of the number of CFU per mL of saliva, measured in saliva samples with dilution of 1 : 100 on days 0 (pretreatment), 90, 180, and 360 in patients treated with chlorhexidine, fluoride, and copaiba varnishes.

Day	Chlorhexidine	Fluoride	Copaiba	Significance (ANOVA)
	Mean ± SD	Mean ± SD	Mean ± SD
0	0.45 ± 0.26	0.48 ± 0.20	0.89 ± 0.55^a.c
90	0.33 ± 0.13	0.36 ± 0.11	0.66 ± 0.44^a.c
180	0.30 ± 0.00^v	0.34 ± 0.07^w	0.38 ± 0.19^u.y
360	0.31 ± 0.18^w	0.40 ± 0.28	0.10 ± 0.19^b.c.u.x.z
Significance (repeated measures ANOVA)				—

SD, standard deviation; ANOVA, analysis of variance. The letters ^a and ^b denote statistically significant differences in relation to the chlorhexidine varnish on the same day, while the letter ^c indicates statistically significant difference in relation to the fluoride varnish on the same day (Tukey test). The letters ^u, ^v, and ^w designate statistically significant differences in relation to day 0 in the same group; the letters ^x and ^y denote statistically significant differences in relation to day 90 in the same group, while the letter ^z indicates statistically significant difference in relation to day 180 in the same group (Tukey test).