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Table 1 Vickers microhardness values (VHN) of all studied groups and percent difference between each test and its control subgroup

From: Preventive potential of nano silver fluoride versus sodium fluoride varnish on enamel caries like lesions in primary teeth: in vitro study

 

NSF (subgroup Ia)

(n = 24)

FV (subgroup IIa)

(n = 24)

Ia (test)

(n = 12)

Ib (control)

(n = 12)

IIa (test)

(n = 12)

IIb (control)

(n = 12)

Mean ± SD

312.75 ± 26.35

301.50 ± 26.95

309.27 ± 22.53

293.69 ± 23.24

Paired t test (P value)

6.40 (< 0.001*)

5.35 (< 0.001*)

Independent t test (P value)

0.347 (0.73)

Percent increase

    

 Median

3.23

4.17

 IQR

2.54–4.39

3.18–6.37

 MWU (P value)

− 1.328 (0.81)

  1. NSF Nano silver fluoride, FV Fluoride varnish, IQR Interquartile range, MWU Mann Whitney U test
  2. *Statistically significant at P value ≤ 0.05
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BMC Oral Health

ISSN: 1472-6831

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