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[Preprint]. 2023 Apr 3:rs.3.rs-2723097. [Version 1] doi: 10.21203/rs.3.rs-2723097/v1

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(A and B) Alpha diversity measured by Richness and Shannon indexes shows no significant differences among groups. (C) Principal coordinate analysis (PCoA) using weighted UniFrac distances reveal that the Fer+SnF₂ group has a similar composition and the lowest distances between samples. (D) The bar plot shows the main bacterial genera found across all samples, distributed by treatment groups. (E) Histology of the gingival tissue with treatments noted. Fer, 1/4Fer, SnF₂, and 1/4SnF₂ stand for 1 mg of Fe/ml, 0.25 mg of Fe/ml, 250 ppm of F, and 62.5 ppm of F, respectively.