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The cytotoxic effect of TiF₄ and NaF on fibroblasts is influenced by the experimental model, fluoride concentration and exposure time

Fig 3

Step 2.

Representative confocal images of the 24 h varnishes’ treatments. (A) 4.00% TiF₄, (B) 3.10% TiF₄, (C) 1.50% TiF₄, (D) 5.42% NaF, (E) 4.20% NaF, (F) 2.10% NaF, (G) Control, (H) Placebo. 4.00% TiF₄ and 5.42% NaF (2.45% F); 3.10% TiF₄ and 4.20% NaF (1.90% F); 1.50% TiF₄ and 2.10% NaF (0.95% F). Scale bar, 10 μm.

doi: https://doi.org/10.1371/journal.pone.0179471.g003