The Effect of Toothpastes Containing Natural Ingredients Such As Theobromine and Caffeine on Enamel Microhardness: An In Vitro Study

Table 2

Enamel microhardness values after brushing in each four groups.

Group	Hardness mean value ± SD (KHN)			value
	Demineralization hardness ± SD	Remineralization hardness ± SD	Diff 2 ± SD
1 (theobromine)	151.09 ± 82.76	289.34 ± 100.55	138.24 ± 110.89	0.001
2 (caffeine)	151.20 ± 64.03	231.05 ± 49.82	79.84 ± 56.86	0.001
3 (fluoride)	146.29 ± 69.26	291.82 ± 94.51	145.53 ± 84.43	0.001
4 (distilled water)	149.98 ± 64.42	209.15 ± 57.24	59.16 ± 53.38	0.001
	0.996	0.004	0.003

Diff 2 = remineralization–demineralization; SD: standard deviation.