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Table 3 Difference in BI parameter for moderately deep pockets (4 mm < PD < 6 mm) and deep pockets (PD > 6 mm)

From: Effect of diode laser combined with minocycline hydrochloride in nonsurgical periodontal therapy: a randomized clinical trial

BI

n (teeth)

Baseline

3 months

p (0–3)

6 months

p (0–6)

p (3–6)

Moderately deep pockets (4 mm < PD < 6 mm)

Con

152

4.33 ± 0.53

2.90 ± 0.70

0.023

2.88 ± 0.43

0.02

0.978

Exp 1

209

4.48 ± 0.96

2.33 ± 0.86

0.015

2.45 ± 0.73

0.019

0.833

Exp 2

211

4.29 ± 0.5

2.35 ± 0.64

0.013

2.42 ± 0.96

0.015

0.896

p

 

0.925

0.882

 

0.791

  

Deep pockets (PD > 6 mm)

Con

221

4.57 ± 0.84

3.31 ± 0.66

0.037

3.37 ± 0.29

0.039

0.969

Exp 1

187

4.49 ± 0.91

3.4 ± 0.32

0.049

3.38 ± 0.72

0.049

0.972

Exp 2

213

4.47 ± 0.73

2.39 ± 0.48

 < 0.001

2.01 ± 0.43

 < 0.001

0.043

p

 

0.994

0.013**

0.012

 

 < 0.001**

 < 0.001

  
  1. p value refers to the statistically significant difference between groups in the same period (p < 0.05); p (0–3) value refers to the statistically significant difference for each group between baseline and 3 months (p < 0.05); p (0–6) value refers to the statistically significant difference for each group between baseline and 6 months (p < 0.05); p (3–6) value refers to the statistically significant difference for each group between 3 and 6 months (p < 0.05); **means difference between Con and Exp 2 groups; means difference between Exp 1 and Exp 2 groups