. 2020 Fall;15(4):236–245. doi: 10.22037/iej.v15i4.26865

Table 1.

The mean (SD) of E. faecalis CFU/mL counts for all groups at baseline samples (S1), after instrumentation (S2), after treatment protocol (S3). Data were presented in log10 due to the absence of normality in Shapiro-Wilk test

Groups	Baseline (S1)	After instrumentation (S2)	After treatment (S3)
Saline solution	3.475 (0.3290)^Aa	3.182 (0.9020)^ABa	2.761 (0.9769)^Ba
CH	3.556 (0.2872)^Aa	3.557 (0.3944)^Aab	0.0 (0.0)^Bb
PDT	4.060 (0.6145)^Aab	3.251 (0.5644)^Aa	1.807 (0.7093)^Bc
NAC	3.722 (0.4656)^Aa	3.942 (0.2765)^Ab	0.0 (0.0)^Bb
NAC+PDT	4.775 (1.092)^Ab	4.077 (0.1185)^Ab	0.0 (0.0)^Bb

*Different uppercase letters mean statistically significant differences intragroup (P<0.05) (Repeated Measure ANOVA); Different lowercase letters indicate statistically significant difference in intergroup (Ordinary one-way ANOVA)