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Table 2 Comparison between the three studied readings according to PCR in each group

From: Chlorhexidine versus organoselenium for inhibition of S. mutans biofilm, an in vitro study

PCR

T1

T3

T4

Fr

p

Chlorohexidine varnish

(n = 14)

(n = 15)

(n = 15)

1.000

0.607

 Min.–Max.

7.193E+01–2.219E+04

4.232E+01–1.923E+04

3.722E+01–2.462E+04

 Mean ± SD.

6.115E+03 ± 6.998E+03

4.527E+03 ± 5.818E+03

6.941E+03 ± 8.358E+03

 Median

3.655E+03

1.428E+03

2.707E+03

 IQR

3.676E+02–9.902E+03

6.091E+02–7.853E+03

4.701E+02–1.315E+04

Organoselenium sealant

(n = 15)

(n = 14)

(n = 14)

5.692

0.058

 Min.–Max.

2.344E+02–7.318E+04

5.351E+02–3.441E+05

1.048E+02–1.194E+04

 Mean ± SD.

1.070E+04 ± 1.837E+04

3.796E+04 ± 9.442E+04

2.670E+03 ± 3.084E+03

 Median

4.318E+03

4.843E+03

1.981E+03

 IQR

3.303E+03–8.043E+03

2.095E+03–1.051E+04

4.256E+02–3.135E+03

  1. IQR inter quartile range, SD standard deviation, Fr Friedman test
  2. p: p value for comparing between the three studied readings