Table 4: Inter-group comparison of plaque index data at baseline, day 10 and day 21 using Mann-Whitney U-test

Groups

Baseline

10th day

21st day

Z

p

Z

p

Z

p

I vs II

0.029

0.977*

0.058

0.954*

0.029

0.977*

I vs III

0.694

0.488*

1.041

0.298*

2.059

0.047**

II vs III

0.636

0.524*

1.186

0.236*

2.019

0.032**

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