Abstract
Objective
To compare the expression of the volumetric alteration (VA) artifact between cylindrical and convex triangular fields of view (FOVs) using high-density materials in different positions in two cone-beam computed tomography (CBCT) devices.
Materials and methods
Cylinders of five high-density materials (amalgam, chromium-cobalt, gutta-percha, titanium, and zirconium) with known physical volume were individually submitted to CBCT acquisition in four positions inside a polymethylmethacrylate phantom using two different FOV shapes (convex triangular and cylindrical) on the Veraviewepocs® R100 (R100) and Veraview® X800 (X800) devices. Two oral radiologists obtained the tomographic volumes by segmenting each cylinder. The difference between the tomographic and physical volumes corresponded to the VA. These values were analyzed by intraclass correlation coefficient and analysis of variance for repeated measures with Tukey post hoc test (α = 5%).
Results
The FOV influenced the VA only in the X800 device (p = 0.014): the VA in the triangular FOV was greater than in the cylindrical FOV. The VA in the triangular FOV of the X800 device was greater than the R100 device (p < 0.0001). The material influenced the expression of the VA only in the R100 device (p < 0.0001); gutta-percha presented the highest VA, being underestimated, and differing from the other materials (p < 0.01).
Conclusion
The triangular FOV increased the VA of high-density materials in the X800 device.
Clinical relevance
It is important to know if there is an influence on the volumetric alteration artifact of dental materials due to the different image formation geometry in the convex triangular FOV.
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Acknowledgements
The first author is grateful to the University of Costa Rica for funding his postgraduate studies. Special thanks to the Oral Radiology Section of the Faculty of Dentistry of the University of Costa Rica for the support during image acquisition with the Veraviewepocs® R100 device, and to Dr. Ana Luisa Berrocal Domínguez for her support during image acquisition with the Veraview® X800 device.
The authors thank Espaço da Escrita—Pró—Reitoria de Pesquisa—UNICAMP—for the language services, and S.I.N Implantes for providing the titanium cylinders.
Funding
This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brasil (CAPES)—Finance Code 001.
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All authors contributed to the study conception and design and assume full responsibility for its content. Data acquisition was performed by Deivi Cascante-Sequeira and Fernanda Coelho-Silva; analysis and interpretation of data for the work was done by Deivi Cascante-Sequeira, Fernanda Coelho-Silva, Lucas de Paula Lopes Rosado, Deborah Queiroz Freitas, Sergio Lins de-Azevedo-Vaz, and Francisco Haiter-Neto. The first draft of the manuscript was written by Deivi Cascante-Sequeira and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript to be published.
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Cascante-Sequeira, D., Coelho-Silva, F., Rosado, L.P.L. et al. Comparison of the expression of the volumetric alteration artifact in cylindrical and triangular fields of view in two cone-beam computed tomography devices. Clin Oral Invest 26, 1025–1033 (2022). https://doi.org/10.1007/s00784-021-04086-1
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DOI: https://doi.org/10.1007/s00784-021-04086-1