Table 2: Mean and mean differences in probing pocket depth, clinical attachment level and gingival recession between groups I and II at different intervals

Probing pocket depth

Clinical attachment level

Gingival recession

Assessment interval

Groups

Mean± SD

Mean difference (A-B)

z value

p-value

Mean ± SD

Mean difference (A-B)

z value

p-value

Mean ± SD

Mean difference (A-B)

z value

p-value

Baseline - 3 months

1

2.64 ± 0.67

0.45 ± 0.42

0.70

0.48

2.45 ±0.82

0.00 ±0.39

0.04

0.97

0.18 ±0.40

0.45 ± 0.24

1.79

0.07

II

3.09 ±1.22

2.45 ±1.04

0.64 ±0.67

Baseline - 6 months

3.91 ±1.22

0.73 ± 0.66

0.85

0.39

3.73 ±1.35

0.27 ±0.60

0.38

0.71

0.18 ±0.40

0.55 ± 0.27

1.85

0.06

II

4.64 ±1.80

4.00 ±1.48

0.73 ±0.79