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Table 1 Microhardness value of permanent dentin treated with different anti-caries agents, and results of Student’s t test pre-and post-irradiation intra-groups (−χ ± S, n = 7, MHV)

From: Effects of different anti-caries agents on microhardness and superficial microstructure of irradiated permanent dentin: an in vitro study

Groups

SMH0 (Kg/mm2)

SMH1 (Kg/mm2)

t

P

G1

65.36 ± 1.89

65.72 ± 2.40

−0.687

0.52

G2

65.42 ± 1.68

39.18 ± 6.35

9.662

0.00*

G3

65.36 ± 3.22

46.92 ± 4.88

7.122

0.00*

G4

64.90 ± 2.86

47.07 ± 6.39

5.765

0.00*

G5

65.25 ± 1.52

53.84 ± 6.23

5.830

0.00*

G6

65.13 ± 3.19

54.70 ± 4.42

4.772

0.00*

G7

65.27 ± 1.98

56.00 ± 4.02

7.299

0.00*

G8

65.88 ± 5.50

56.05 ± 3.69

8.159

0.00*

  1. *means that there was significant difference in the dentin microhardness pre- and post-irradiation intra-group (P<0.05). SMH surface microhardness
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BMC Oral Health

ISSN: 1472-6831

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