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Table 2 Mean PD and CAL for sites treated with SRP or SRP plus EGCG

From: Efficacy of (−)-epigallocatechin gallate delivered by a new-type scaler tip during scaling and root planing on chronic periodontitis: a split-mouth, randomized clinical trial

Clinical parameter

Mean ± SD

Within-group comparison

Baseline

Month 3

Month 6

PD (mm)

SRP + EGCG

5.33 ± 1.38

3.44 ± 1.29

3.37 ± 1.36

0 versus 3: p < 0.001*

0 versus 6: p < 0.001*

3 versus 6: p = 0.019*

SRP

5.28 ± 1.33

3.47 ± 1.3

3.66 ± 1.43

0 versus 3: p < 0.001*

0 versus 6: p < 0.001*

3 versus 6: p = 0.001*

Between-group comparison

p = 0.656

p = 0.696

p = 0.004*

 

CAL (mm)

SRP + EGCG

3.83 ± 2.18

2.62 ± 2.16

2.42 ± 2.11

0 versus 3: p < 0.001*

0 versus 6: p < 0.001*

3 versus 6: p = 0.005*

SRP

3.75 ± 2.11

2.62 ± 2.18

2.65 ± 2.09

0 versus 3: p < 0.001*

0 versus 6: p < 0.001*

3 versus 6: p = 0.674

Between-group comparison

p = 0.611

p = 0.985

p = 0.139

 
  1. The comparison between groups at each interval was performed with Student’s t test (*p < 0.05)
  2. The comparison within each group was performed with the Bonferroni method (*p < 0.05); 0, baseline; 3, month 3; 6, month 6
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BMC Oral Health

ISSN: 1472-6831

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