Aim:

To compare the microhardness of two silicate-based endodontic materials: MTA Densell Endo Sealer and Total Fill BC Sealer.

Materials and methods:

Samples of MTA Densell Endo Sealer (Group 1, n=5) and Total Fill BC Sealer (Group 2, n=5) contained into cow dentine cylinders were subjected to the Vickers Microhardness Indentation test at room temperature and 14 days after setting. Five indentations per sample were performed under a load of 100 g for 10 s. The indentation measurements were converted into hardness values (HV). Mean HV values of each group were compared using the Student t test at a significance level of P <0,05.

Results:

14 days after setting, the microhardness of MTA Densell Endo Sealer was significantly greater (P=0,001) than that of Total Fill BC Sealer.

Conclusions:

The results of this study suggest that due to its hardness the removal of MTA Densell Endo Sealer could be difficult to perform when a root canal retreatment is indicated.