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Revista de la Asociación Odontológica Argentina
On-line version ISSN 2683-7226
Abstract
ZMENER, Osvaldo; ENSINAS, Pablo; PICCA, Mariana and DELLA PORTA, Roberto. Surface microhardness of two calcium silicate-based endodontic materials. An ex vivo assay. Rev. Asoc. Odontol. Argent. [online]. 2021, vol.109, n.2, pp.76-80. Epub Aug 20, 2021. ISSN 2683-7226. http://dx.doi.org/10.52979/raoa.1133.
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.
Keywords : Calcium silicate-based materials; endodontics; microhardness; MTA.
