Research Article
The Effect of Toothpastes Containing Natural Ingredients Such As Theobromine and Caffeine on Enamel Microhardness: An In Vitro Study
Table 3
Comparison of microhardness values in pairwise groups.
| Group | Theobromine | Caffeine | Fluoride | Distilled water |
| Theobromine | — | 0.035 | 0.780 | 0.005 | Caffeine | 0.035 | — | 0.017 | 0.460 | Fluoride | 0.780 | 0.017 | — | 0.002 | Distilled water | 0.005 | 0.460 | 0.002 | — |
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