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. 2015 Summer;10(3):162-4.
doi: 10.7508/iej.2015.03.003. Epub 2015 Jul 1.

Effects of Chlorhexidine and Sodium Hypochlorite on the Setting Time of Calcium-Enriched Mixture Cement

Mohammad Frough Reyhani  1 , Negin Ghasemi  1 , Sahar Shakouie  1 , Saeed Rahimi  2 , Amin Salem Milani  1 , Babak Ranjbar  3
Affiliations

Effects of Chlorhexidine and Sodium Hypochlorite on the Setting Time of Calcium-Enriched Mixture Cement

Mohammad Frough Reyhani et al. Iran Endod J. 2015 Summer.

Abstract

Introduction: The aim of the present study was to evaluate whether adding 2% chlorhexidine (CHX) and 2.6% sodium hypochlorite (NaOCl) to calcium-enriched mixture (CEM) cement would affect its setting time (ST), or not.

Methods and materials: In this study, the setting time of CEM cement was evaluated in three groups (n=9) as follows: group 1; CEM cement, group 2; CEM cement+2% CHX and group 3; CEM cement+2.6% NaOCl. Then the mean values of ST were calculated and the Kolmogorov-Smirnov test was used to evaluate the normal distribution of data. The Kruskal-Wallis and Mann-Whitney U tests were used for statistical analysis. Statistical significance was set at 0.05.

Results: The mean ST for groups 1, 2 and 3 were 105, 120 and 220 min, respectively. There was a significant increase in the duration of ST in group 3 (NaOCl) in comparison with the two other groups (P<0.05).

Conclusion: NaOCl significantly increased the ST of CEM cement, whereas chlorhexidine did not alter the ST.

Keywords: CEM Cement; Calcium-Enriched Mixture; Chlorhexidine; Setting Time; Sodium Hypochlorite.

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