Table 1. Determination of MIC of cinnamon essential oil, Cajeput essential oil, and their combination, and 0.2% CHX hydrochloride tested against Staphylococcus aureus, Enterococcus faecalis, and Candida albicans.

The results are shown as average values of triplicates in mg/mL (mean ± standard deviation).

The statistical test applied was the Kruskal-Wallis test.

Bonferroni post hoc test was applied.

^aGold standard of 0.2% CHX is not statistically significant.

^b,cSignificant difference found when compared to 0.2% CHX (in the same row).

*P ≤ 0.05 was considered statistically significant.

MIC, minimum inhibitory concentration; CHX, chlorhexidine hydrochloride solution

Test microorganisms	MIC (mg/mL)				Statistics
	0.2% CHX	Cinnamon oil	Cajeput oil	Combination	Z-value	P-value
Staphylococcus aureus	6.51 ± 2.26a	0.33 ± 0.14b	5.21 ± 2.26a	0.57 ± 0.37c	9.039	0.029*
Enterococcus faecalis	15.63 ± 0.02a	0.41 ± 0.14b	2.12 ± 1.71a	0.49 ± 0.42c	8.484	0.037*
Candida albicans	10.42 ± 4.51a	1.46 ± 2.11a	1.95 ± 0.01a	3.26 ± 3.95b	6.297	0.098