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1 "Bernardo Camargo dos Santos"
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  • Research Article
    How do imaging protocols affect the assessment of root-end fillings?
    Fernanda Ferrari Esteves Torres, Reinhilde Jacobs, Mostafa EzEldeen, Karla de Faria-Vasconcelos, Juliane Maria Guerreiro-Tanomaru, Bernardo Camargo dos Santos, Mário Tanomaru-Filho
    Restor Dent Endod 2022;47(1):e2.   Published online December 15, 2021
    DOI: https://doi.org/10.5395/rde.2022.47.e2
    AbstractAbstract PDFPubReaderePub
    Objectives

    This study investigated the impact of micro-computed tomography (micro-CT)-based voxel size on the analysis of material/dentin interface voids and thickness of different endodontic cements.

    Materials and Methods

    Following root-end resection and apical preparation, maxillary premolars were filled with mineral trioxide aggregate (MTA), Biodentine, and intermediate restorative material (IRM) (n = 24). The samples were scanned using micro-CT (SkyScan 1272; Bruker) and the cement/dentin interface and thickness of materials were evaluated at voxel sizes of 5, 10, and 20 µm. Analysis of variance and the Tukey test were conducted, and the degree of agreement between different voxel sizes was evaluated using the Bland and Altman method (p < 0.05).

    Results

    All materials showed an increase in thickness from 5 to 10 and 20 µm (p < 0.05). When evaluating the interface voids, materials were similar at 5 µm (p > 0.05), while at 10 and 20 µm Biodentine showed the lowest percentage of voids (p < 0.05). A decrease in the interface voids was observed for MTA and IRM at 20 µm, while Biodentine showed differences among all voxel sizes (p < 0.05). The Bland-Altman plots for comparisons among voxel sizes showed the largest deviations when comparing images between 5 and 20 µm.

    Conclusions

    Voxel size had an impact on the micro-CT evaluation of thickness and interface voids of endodontic materials. All cements exhibited an increase in thickness and a decrease in the void percentage as the voxel size increased, especially when evaluating images at 20 µm.

    Citations

    Citations to this article as recorded by  
    • Effect of ultrasonic activation of endodontic sealers on root canal filling quality during the single-cone obturation procedure: a systematic review and meta-analysis of laboratory-based studies
      Shuting Feng, Weiqing Zhou, Xiaojun Chu, Shuaimei Xu, Xiongqun Zeng
      Odontology.2025;[Epub]     CrossRef
    • Marginal Adaptation and Porosity of a Novel MTA Brand Applied as Root-End Filling Material: A Micro-CT Study
      Yaneta Kouzmanova, Ivanka Dimitrova
      Applied Sciences.2024; 14(7): 2758.     CrossRef
    • Supplementary methods for filling material removal: A systematic review and meta-analysis of micro-CT imaging studies
      Bruna Venzke Fischer, Taynara Santos Goulart, Filipe Colombo Vitali, Diego Leonardo de Souza, Cleonice da Silveira Teixeira, Lucas da Fonseca Roberti Garcia
      Journal of Dentistry.2024; 151: 105445.     CrossRef
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