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Table 2 Mean scores of PI, GI, TCI, TDI and resting 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

PIa

Experimental group

1.13 (0.56)

0.92 (0.40)

0.027*

 

Control group

1.11 (0.58)

1.15 (0.35)

0.865

 

p-valuec

1.000

0.098

 

GIa

Experimental group

1.08 (0.71)

0.90 (0.93)

0.200

 

Control group

1.07 (0.73)

1.03 (0.42)

0.649

 

p-valuec

1.000

0.539

 

TCIa

Experimental group

9.00 (1.96)

7.07 (1.75)

0.005**

 

Control group

9.10 (2.17)

7.13 (1.68)

0.023*

 

p-valuec

1.000

0.806

 

TDIa

Experimental group

9.47 (3.09)

8.93 (3.03)

0.632

 

Control group

9.45 (3.02)

7.60 (2.50)

0.074

 

p-valuec

1.000

0.174

 

Resting saliva (mL/min)

Experimental group

0.33 (0.20)

0.38 (0.30)

0.196

 

Control group

0.43 (0.33)

0.46 (0.36)

0.085

 

p-valuec

0.436

0.367

 
  1. a PI, plaque index; GI, gingival index; TCI, tongue coating index; TDI, tongue discoloration index
  2. b Comparision with the baseline (before rinsing) and after 7 days. The Willcoxson signed-rank test was used for statistical analysis.
  3. c Comparision with the experimental group and control group. The Mann-Whitney U-test was used for statistical analysis.
  4. *p < 0.05, **p < 0.01