Revista de Odontologia da UNESP
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Revista de Odontologia da UNESP
Original Article

Properties and biological aspects of mineral trioxide aggregate: literature review

Propriedades e aspectos biológicos do agregado trióxido mineral: revisão da literatura

Mota, Cláudia Cristina Brainer de Oliveira; Brasil, Catarina da Mota Vasconcelos; Carvalho, Natalia Rabelo de; Beatrice, Lúcia Carneiro de Souza; Teixeira, Hilcia Mezzalira; Nascimento, Alexandre Batista Lopes do; Vicente Silva, Cláudio Heliomar

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Abstract

The ideal root canal sealer should present specific characteristics, as biological compatibility, appropriate marginal sealing, ability to allow or induce bone repair, and ease of manipulation and insertion. Mineral trioxide aggregate (MTA) was developed such a retro-sealer with better chemistry, physics and biological properties than materials that exist at the time, as amalgam, intermediate restorative material (IRM), and SuperEBA. Actually, MTA is used such a canal filling material to seal root apical, at drilling repair, and as a pulp capping agent; in addition, it is used
as a filling retrograde material. The purpose of this study was a literature review about mineral trioxide aggregate, comparing it to the main endodontic cements and retro-sealer materials available at market for root canal filling retrograde filling, analyzing its properties and biological characteristics. It was concluded MTA is a quite satisfactory retro-sealer material, in terms of its chemical-physical-biological properties, especially due to its biocompatibility, and potential actions do conduce and induce the repair of bone and cementum.

Keywords

MTA, root-end filling, pulp capping, periapical surgery, apical leakage.

Resumo

O material obturador ideal deve apresentar características específicas, como biocompatibilidade, selamento marginal adequado, capacidade de permitir ou induzir o reparo ósseo e facilidade de manipulação e inserção. O agregado trióxido mineral (MTA) foi desenvolvido como um material para obturação retrógrada com melhores propriedades químicas, físicas e biológicas do que os materiais existentes na época, como amálgama, material restaurador intermediário (IRM) e SuperEBA. Atualmente, o MTA é usado como material de preenchimento radicular no selamento apical, no reparo de perfurações e como agente de capeamento pulpar, além de ser usado como material de obturação retrógrada. O objetivo deste artigo foi realizar uma revisão da literatura acerca do agregado trióxido mineral, comparando-o com os principais cimentos endodônticos e materiais obturadores retrógrados disponíveis
no mercado para a retrobturação do sistema de canais radiculares, analisando suas propriedades e características biológicas. Concluiu-se que o MTA é um material obturador retrógrado bastante satisfatório do ponto de vista químico-físico-biológico, especialmente por sua biocompatibilidade e seu potencial de ação osteocondutora,
osteoindutora e cementocondutora.

Palavras-chave

MTA, obturação retrógrada, capeamento pulpar, cirurgia periapical, infiltração apical.

References



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