Artifact induction by endodontic materials

a CBCT analysis

  • Fernanda Cristina Sales Salineiro Universidade de São Paulo
  • Igor Publio Talamoni Universidade de São Paulo
  • Solange Kobayashi Velasco Universidade de São Paulo
  • Fabiana Mesquita Barros Universidade de São Paulo
  • Marcelo de Gusmão Paraíso Cavalcanti Universidade de São Paulo
Keywords: Tomography, X-ray Computed, Gutta Percha, Root Canal Obturation, Artifacts

Abstract

Metallic objects, such as intracanal posts and restorations, may produce severe interference, thus diminishing the quality of CBCT imaging. Objective: The purpose of this study was to analyze the influence of conventional and bioceramic gutta-percha points on the production of artifacts in CBCT images. Methods: Extracted single- -rooted premolar teeth (n=20) were instrumented and scanned with a CBCT device to create three groups: the Control group, the Gutta-Percha group and the Bioceramic Gutta-Percha group. Two types of analysis were executed: an objective one, using the Region of Interest (ROI) to measure the pixel density of each tooth, and a subjective one, to compare the groups’ images. For the statistical analysis, Student’s t-test, descriptive statistics and the frequency distribution analysis were used for both objective and subjective analyses. Results: The agreement between the observers ranged from moderate to excellent. Similar grayscale values were obtained in both the GP and BCGP groups. These results were endorsed by the p-values obtained with Student’s t test. For the subjective analysis, the observers indicated the BCGP group as the one that developed the highest number of artifacts. Conclusions: Both materials produced artifacts in the CBCT images. However, in the subjective analysis, the BCGP group showed higher levels of artifact production than the GP group, which could result in the misdiagnosis of root fracture and in a worse prognosis for that tooth.

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Author Biographies

Fernanda Cristina Sales Salineiro, Universidade de São Paulo

PhD, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, SP, Brazil

Igor Publio Talamoni, Universidade de São Paulo

DDS, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, SP, Brazil

Solange Kobayashi Velasco, Universidade de São Paulo

MS Student, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, SP, Brazil

Fabiana Mesquita Barros, Universidade de São Paulo

PhD, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, SP, Brazil

Marcelo de Gusmão Paraíso Cavalcanti, Universidade de São Paulo

PhD, Professor, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, SP, Brazil

Published
2019-05-15
Issue
Section
Original Research