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Ceramica  2011 

Propriedades e bioatividade de um cimento endod?ntico à base de aluminato de cálcio

DOI: 10.1590/S0366-69132011000300017

Keywords: calcium aluminate cement, mta, properties, bioactivity.

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Abstract:

the mineral trioxide aggregate (mta), a material primarily developed as a root-end filling has been extensively investigated as an innovative product for endodontic applications. however, changes in its formulation/composition involving its mineral aggregates and the development of alternatives of materials have been proposed in an attempt to overcome its negative physical-chemical characteristics. in this work, the influence of additives addition on the development of a novel endodontic cement based on calcium aluminate, has been evaluated. in addition, the properties of endodontic calcium aluminate cement (ecac) were compared with the gold standard mineral-trioxide-aggregate in contact with simulated body fluid (sbf). manipulation tests and measurements of compressive strength, apparent porosity, setting time, ph and ionic conductivity were carried out on plain mta and calcium aluminate cement with and without various additives: a polymeric dispersant, cacl2 as plasticizer, zno as radiopacifier and accelerator additives. based on the ecac properties and likely bioactivity in contact with sbf solution, this alternative material can be indicated as a potential compound for multipurpose use in endodontics.

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