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Table 3 Mean number counts (log10 (copies/10 μL)) of selected bacterial species in saliva at baseline and following 7 days rinsing.

From: Effects of a mouthwash with chlorine dioxide on oral malodor and salivary bacteria: a randomized placebo-controlled 7-day trial

  

Baseline

Mean (SD)

7 days after

Mean (SD)

p-valueb

Total bacterial counts

Experimental group

8.33 (0.48)

8.04 (0.55)

0.278

 

Control group

8.41 (0.58)

8.21 (0.58)

0.411

 

p-valueb

0.734

0.491

 

F. nucleatum a

Experimental group

5.09 (0.75)

4.29 (1.05)

0.006**

 

Control group

5.07 (0.56)

4.85 (0.65)

0.418

 

p-valueb

0.822

0.024*

 

P. gingivalis a

Experimental group

1.87 (1.66)

1.75 (1.31)

0.618

 

Control group

1.83 (1.52)

1.82 (1.57)

0.796

 

p-valueb

0.614

0.866

 

T. forsythus a

Experimental group

4.11 (0.87)

3.87 (1.02)

0.443

 

Control group

4.01 (0.63)

3.77 (0.70)

0.366

 

p-valueb

0.734

0.993

 

T. denticola a

Experimental group

2.82 (1.24)

2.86 (1.19)

0.849

 

Control group

2.79 (1.29)

2.68 (1.22)

0.797

 

p-valueb

0.926

0.676

 
  1. a Fusobacterium nucleatum; Prophyromonas gingivalis; Tannerella forsythensis; Treponema denticola
  2. b Comparision with the baseline (before rinsing) and after 7 days on the bacterial number counts. Data were analyzed using ANCOVA with adjustment for PI, TCI and volume of resting saliva.
  3. *p < 0.05, **p < 0.01