Table 3: Comparison of differences between baseline, day 10 and day 21 examinations for plaque index data using Wilcoxon's Signed Rank Sum Test

Groups

Baseline vs day 10

Baseline vs day 21

Day 10 vs Day 21

Z

p

Z

p

Z

p

I

2.955

0.003***

3.066

0.002***

2.820

0.005***

II

2.274

0.023**

2.943

0.003***

3.097

0.002***

III

0.393

0.694*

1.338

0.181*

1.582

0.114*

***Highly significant; **Significant; *Not significant