An in vitro comparison of the antibacterial efficacy of triphala with different concentrations of sodium hypochlorite.
BACKGROUND
The antimicrobial efficacy of root canal irrigant plays an important role in increasing the success of root canal treatment (RCT). The aim of the present experimental study was to compare the antimicrobial activity of Triphala (a plant-derived solution) with 0.5, 1, 2.5 and 5% concentrations of sodium hypochlorite (NaOCl), against Enterococcus faecalis (E. faecalis).


METHODS
Two hundred plates of cultured E. faecalis, were divided into 5 experimental groups (n=38) and two positive and negative control groups. The antimicrobial activity of the test solutions was determined by measuring the zone of inhibition in the culture media. The mean diameter of inhibited zones between the study groups was compared using the Kruskal-Wallis test and the Mann-Whitney U test was used for the two-by-two comparison of the groups with the level of significance set at 0.05.


RESULTS
The Kruskal-Wallis test showed significant differences between the study groups (P<0.05). According to the Mann-Whitney U test the mean diameter of inhibition zones in Triphala group was significantly higher compared to 0.5 and 1% NaOCl (P<0.05).


CONCLUSIONS
In this study, Triphala exhibited better antimicrobial activity against E. faecalis compared to 0.5 and 1% NaOCl (P<0.05).
Department of Endodontics, Dental School, Tabriz University of Medical Sciences, Tabriz ,Iran;
Sahar
S
Shakouie
Department of Endodontics, Dental School, Tabriz University of Medical Sciences, Tabriz ,Iran;
Mahsa
M
Eskandarinezhad
Department of Endodontics, Dental School, Tabriz University of Medical Sciences, Tabriz ,Iran;
Negin
N
Gasemi
Department of Endodontics, Dental School, Tabriz University of Medical Sciences, Tabriz ,Iran;
Amin Salem
AS
Milani
Department of Endodontics, Dental School, Tabriz University of Medical Sciences, Tabriz ,Iran;
Mohammad
M
Samiei
Private Practice, Tehran, Iran.
Sara
S
Golizadeh
Antibacterial Agents; Enterococcus Faecalis; Root Canal Treatment; Sodium Hypochlorite; Triphala; Zone of Inhibition