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A micro-computed tomographic study using a novel test model to assess the filling ability and volumetric changes of bioceramic root repair materials
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Fernanda Ferrari Esteves Torres, Jader Camilo Pinto, Gabriella Oliveira Figueira, Juliane Maria Guerreiro-Tanomaru, Mario Tanomaru-Filho
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Restor Dent Endod 2021;46(1):e2. Published online December 8, 2020
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DOI: https://doi.org/10.5395/rde.2021.46.e2
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 Abstract
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- Objectives
New premixed bioceramic root repair materials require moisture for setting. Using micro-computed tomography (micro-CT), this study evaluated the filling ability and volumetric changes of calcium silicate-based repair materials (mineral trioxide aggregate repair high-plasticity [MTA HP] and Bio-C Repair, Angelus), in comparison with a zinc oxide and eugenol-based material (intermediate restorative material [IRM]; Dentsply DeTrey). Materials and MethodsGypsum models with cavities 3 mm deep and 1 mm in diameter were manufactured and scanned using micro-CT (SkyScan 1272. Bruker). The cavities were filled with the cements and scanned again to evaluate their filling capacity. Another scan was performed after immersing the samples in distilled water for 7 days to assess the volumetric changes of the cements. The statistical significance of differences in the data was evaluated using analysis of variance and the Tukey test with a 5% significance level. ResultsBio-C Repair had a greater filling ability than MTA HP (p < 0.05). IRM was similar to Bio-C and MTA HP (p > 0.05). MTA HP presented the largest volumetric change (p < 0.05), showing more volume loss than Bio-C and IRM, which were similar (p > 0.05). ConclusionsBio-C Repair is a new endodontic material with excellent filling capacity and low volumetric change. The gypsum model proposed for evaluating filling ability and volumetric changes by micro-CT had appropriate and reproducible results. This model may enhance the physicochemical evaluation of premixed bioceramic materials, which need moisture for setting.
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Citations
Citations to this article as recorded by  - Comparative evaluation of sealing potential of mineral trioxide aggregate, biodentine, and bio-C repair in furcation perforations: A glucose penetration study
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Cumhuriyet Dental Journal.2023; 26(3): 261. CrossRef - Biocompatibility, bioactive potential, porosity, and interface analysis calcium silicate repair cements in a dentin tube model
Rafaela Nanami Handa Inada, Marcela Borsatto Queiroz, Camila Soares Lopes, Evelin Carine Alves Silva, Fernanda Ferrari Esteves Torres, Guilherme Ferreira da Silva, Juliane Maria Guerreiro-Tanomaru, Paulo Sérgio Cerri, Mário Tanomaru-Filho
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Giovanna da Cunha MENDONÇA, Karina Ines Medina Carita TAVARES, Airton Oliveira SANTOS-JUNIOR, Jáder Camilo PINTO, Juliane Maria GUERREIRO-TANOMARU, Mário TANOMARU-FILHO
Revista de Odontologia da UNESP.2023;[Epub] CrossRef
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