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Mass percentage of fluoride intake of enamel specimens for each sealant material. Different superscript letters in one column indicate significant differences between materials (ANOVA, Tukey’s test). For group abbreviations, see Table 1. Different letters denote a statistically significant difference compared with the other groups.
| Sealant Material | [F] Mass (%) (Mean ± SD) |
|---|---|
| BTS | 4.7 ± 0.2 a |
| TMF | 2.0 ± 0.2 b |
| SS | 0.0 ± 0.0 c |
