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Table 3 Comparison of blood glucose levels among four groups (\( \overline{x} \) ±s)

From: Application value of combination therapy of periodontal curettage and root planing on moderate-to-severe chronic periodontitis in patients with type 2 diabetes

Group

Time

Fasting blood glucose (mmol/L)

2-h postprandial blood glucose (mmol/L)

Glycosylated hemoglobin (%)

Combined group (n=18)

Before therapy

9.98±1.28

9.29±1.01

9.83±1.78

 

After 3 months of therapy

8.03±1.03

8.13±1.07

7.38±0.87

Root planing group (n=18)

Before therapy

9.94±1.32

9.31±1.17

9.81±1.82

After 3 months of therapy

8.23±1.23

8.23±1.73

7.42±0.65

Periodontal curettage group (n=18)

Before therapy

9.97±1.42

9.30±1.35

9.79±1.29

After 3 months of therapy

8.16±1.22

8.32±0.76

7.68±1.73

Cleansing group (n=18)

Before therapy

9.92±1.39

9.34±1.46

9.85±1.82

After 3 months of therapy

8.21±1.43

8.65±0.87

7.76±1.27

t

 

0.007

0.005

0.004

P

 

0.999

1.0

1.0

t’

 

0.095

0.669

0.441

P′

 

0.963

0.574

0.724

t*

 

5.036

3.345

4.283

P*

 

<0.001

0.002

<0.001

t#

 

3.886

2.194

5.247

P#

 

<0.001

0.035

<0.001

t*#

 

4.12

2.684

4.148

P*#

 

<0.001

0.011

<0.001

t*#*

 

3.638

2.087

3.995

P*#*

 

0.001

0.044

<0.001

  1. Note: t and P were the comparison of four groups before treatment; t’ and P′ were the comparison of four groups 3 months after treatment; t* and P* were the comparison of combined group before and 3 months after treatment; t# and P# were the comparison of root planing group before and 3 months after treatment; t*# and P*# were the comparison of periodontal curettage group before and 3 months after treatment; t*#* and P*#* were the comparison of cleansing group before and 3 months after treatment