Author/Authors :
Frough Reyhani ، Mohammad نويسنده Department of Endodontics, Dental School, Tabriz University of Medical Sciences, Tabriz, Iran Frough Reyhani , Mohammad , Ghasemi، Negin نويسنده Department of Endodontics, Dental School, Tabriz University of Medical Sciences, Tabriz, Iran , , Shakouie، Sahar نويسنده , , Rahimi، Saeed نويسنده , , Salem Milani، Amin نويسنده Dental and periodontal disease research center, Dental School, Tabriz University of Medical Sciences, Tabriz, Iran , , Ranjbar ، Babak نويسنده Private Practice Ranjbar , Babak
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.
