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	—