Juliana Bm da Fonte1,2, Taís M de Andrade3, Ricardo Lc Albuquerque4, Maria de Fátima B de Melo2,5, Wilton M Takeshita2. 1. 1 Department of Dentistry, Master's Degree Program in Dentistry, Federal University of Sergipe, UFS, Aracaju, Brazil. 2. 2 Department of Dentistry, Discipline of Radiology and Dental Imaging, Federal University of Sergipe, UFS Aracaju, Brazil. 3. 3 Department of Dentistry, Federal University of Sergipe, UFS, Aracaju, Brazil. 4. 4 Department of Dentistry, Discipline of Oral and Maxillofacial Pathology, Tiradentes University, UNIT, Aracaju, Brazil. 5. 5 Departament of Oral Pathology, Radiology & Medicine, University of Iowa, Iowa, IA, USA.
Abstract
OBJECTIVES: To assess cytological evidence of genotoxicity and cytotoxicity of X-rays in oral exfoliated cells of adults subjected to partial and total cone beam CT (CBCT) (stitching module) by means of micronuclei frequency, associated with counting of degenerative nuclear alterations (pyknosis, karyolysis, karyorrhexis, buds and broken eggs), besides comparing the partial and total CBCT (stitching module) in search of possible differences in the nature and/or intensity of the effects. METHODS: 29 adults who were referred to total or partial CBCT were selected. All CBCT were performed with a Carestream CS 9000 3D scanner (Carestream Health Inc., Rochester, NY). Material collection was done immediately before CBCT and 10 days later, by scraping the left and right cheek mucosa with a plastic spatula. Statistical analysis was performed using the Wilcoxon test (paired data), at a significance level of 5%. RESULTS: The statistically significant difference was noted in the frequency of micronucleated cells for both partial and total acquisition (p = 0.008 and p < 0.001, respectively). Regarding to cytotoxicity, there was a statistically significant difference for both partial and total acquisition (p < 0.001 and p < 0.001, respectively). CONCLUSIONS: The partial and total CBCT seems to offer risks of inducing genetic damage. In addition both forms of CBCT acquisition have promoted the induction of cytotoxic nuclear alterations.
OBJECTIVES: To assess cytological evidence of genotoxicity and cytotoxicity of X-rays in oral exfoliated cells of adults subjected to partial and total cone beam CT (CBCT) (stitching module) by means of micronuclei frequency, associated with counting of degenerative nuclear alterations (pyknosis, karyolysis, karyorrhexis, buds and broken eggs), besides comparing the partial and total CBCT (stitching module) in search of possible differences in the nature and/or intensity of the effects. METHODS: 29 adults who were referred to total or partial CBCT were selected. All CBCT were performed with a Carestream CS 9000 3D scanner (Carestream Health Inc., Rochester, NY). Material collection was done immediately before CBCT and 10 days later, by scraping the left and right cheek mucosa with a plastic spatula. Statistical analysis was performed using the Wilcoxon test (paired data), at a significance level of 5%. RESULTS: The statistically significant difference was noted in the frequency of micronucleated cells for both partial and total acquisition (p = 0.008 and p < 0.001, respectively). Regarding to cytotoxicity, there was a statistically significant difference for both partial and total acquisition (p < 0.001 and p < 0.001, respectively). CONCLUSIONS: The partial and total CBCT seems to offer risks of inducing genetic damage. In addition both forms of CBCT acquisition have promoted the induction of cytotoxic nuclear alterations.
Authors: Hanns Leonhard Kaatsch; Benjamin Valentin Becker; Simone Schüle; Patrick Ostheim; Kai Nestler; Julia Jakobi; Barbara Schäfer; Thomas Hantke; Marc A Brockmann; Michael Abend; Stephan Waldeck; Matthias Port; Harry Scherthan; Reinhard Ullmann Journal: Sci Rep Date: 2021-06-08 Impact factor: 4.379
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