Odontologia
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Navegando Odontologia por Assunto "Adaptação marginal"
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Artigo Científico Acesso aberto Avaliação da adaptação marginal e porosidade do agregado de trióxido mineral na presença de sangue(2018) Santos, Mariana Parizato dosIntroduction: Teeth in the process of rhizogenesis may have their root formation interrupted by etiological factors, leading to thin dentine walls and open apices, being necessary a treatment to obtain better conditions to obtain a possibility of extravasation of the material for a periapical region. The technique of revascularization can give rise to a periapical barrier, through the induction of bleeding, the periapical origin in order to create a clot within the canal, which is protected by a material to allow a neoformation of dental structures. Repair cements are developed for use in the presence of blood, and their properties may be altered in the presence of blood. The present work is evaluated by the marginal adaptation and porosity by computerized microtomography. Materials and Methods: Twenty four roots of bovine incisors 10 mm high were filled with Mineral Trioxide Aggregate (MTA). The examples were randomly divided into two groups, according to the storage medium (G1 and G2). All the specimens were attached the analysis through microtomography computerised, evaluation of the parameters marginal adaptation, number of pores and percentage of porosity. The results were evaluated by statistical tests. Results: The G2 group presented a lower percentage of closed porosity. Conclusion: It is possible that the exposure to blood has a negative effect on MTA, due to the increase in the percentage of pores on material.