Table 3 Comparison of the mean and standard deviation of surface microhardness at baseline, after artificial carious lesions formation, after pH cycling and percentage of surface microhardness recovery

Group 1

Predicta® (n = 10)

345.195 ± 23.056 ^a

63.643 ± 18.992 ^a

98.415 ± 15.626 ^{a, *}

12.294 ± 3.959 ^{b, *}

Group 2

EQUIA Forte® (n = 10)

343.871 ± 18.212 ^a

61.099 ± 16.818 ^a

83.985 ± 22.499 ^a

8.353 ± 3.580 ^{b, *}

Group 3

Filtek™ Z350 (n = 10)

343.808 ± 18.058 ^a

60.008 ± 15.668 ^a

68.116 ± 14.754 ^a

2.835 ± 0.584 ^b