Table 3.

P value for comparison of mean viable microbial cells isolated from Iranian and Ortho-technology ligature rings before and after disinfection

Microorganisms	Zataria	Chlorhex.	PBS
P value (Iranian)
C . albicans	<0.001	<0.001	0.057
E. faecalis	0.001	0.001	0.063
S. mutans	0.001	<0.001	0.061
P value (Foreign)
C . albicans	<0.001	<0.001	0.053
E. faecalis	0.001	<0.001	0.054
S. mutans	0.001	0.001	0.052

(Wilcoxon)