Comparative evaluation of mutagenic effects of two cone-beam computed tomography in oral mucosa cells.

Autor: Ayres LCG; Dentistry Department, Federal University of Sergipe (UFS), Aracaju, Brazil., Dos Santos MAL; Department of Stomatology, Faculty of Dentistry University of São Paulo (USP), São Paulo, Brazil., da Mota Santana LA; Dentistry Department, Federal University of Sergipe (UFS), Aracaju, Brazil., Avanci LDS; Department of Biosciences, Federal University of Sao Paulo (UNIFESP), Santos, Brazil., Souza DV; Department of Biosciences, Federal University of Sao Paulo (UNIFESP), Santos, Brazil., Lima BNS; Dentistry Department, Federal University of Sergipe (UFS), Aracaju, Brazil., Soares AF; Department of Morphology, Federal University of Sergipe (UFS), São Cristóvão, Brazil., Sousa SF; Oral Surgery and Pathology Department, School of Dentistry, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil., Trento CL; Dentistry Department, Federal University of Sergipe (UFS), Aracaju, Brazil., Ribeiro DA; Department of Biosciences, Federal University of Sao Paulo (UNIFESP), Santos, Brazil., Takeshita WM; Department of Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, Araçatuba, Brazil.
Jazyk: angličtina
Zdroj: Diagnostic cytopathology [Diagn Cytopathol] 2023 Dec; Vol. 51 (12), pp. 729-734. Date of Electronic Publication: 2023 Aug 02.
DOI: 10.1002/dc.25206
Abstrakt: Background: This pilot study aimed to evaluate the mutagenic effects in cells of the oral mucosa after exposure to two different cone beam computed tomography (CBCT).
Methods: Eighteen adults were submitted to the different CBCT (Carestream CS8100 3D and I-CAT). The cells were collected immediately before the CBCT exposure and 10 days later, when the material was placed on a slide and stained using the Feulgen/Fast Green technique. Microscopic analysis counted micronuclei and other nuclear alterations, which are indicative of cytotoxicity such as pyknosis, karyolysis, karyorrhexis, and binucletion. 2000 cells were analyzed. The statistical analysis was performed with the Wilcoxon Signed-Rank test to compare the frequency of cellular alterations, and the Mann-Whitney U test to compare different CBCTs, both with a significance level of 5%.
Results: There was no statistically significant difference in the micronucleated cell count before and after the exposition to the ionizing radiation from I-CAT (p = .298) and CS8100 3D (p = .203) A significate increase of pyknosis (p < .001), karyolysis (p < .001), karyorrhexis (p < .001), and binucletion (p < .001) were noted on I-CAT CBCT. There was no statistically significant difference in cellular alterations in CS8100 3D CBCT.
Conclusion: Despite the increase in micronuclei after exposure, this study indicates that there is no evidence of genotoxicity. On the other hand, the I-CAT CBCT produced cytotoxic effects.
(© 2023 Wiley Periodicals LLC.)
Databáze: MEDLINE
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