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Table 1 Mean values and standart derivations of study parameters halitosis (quantitative analysis of VSC volume), probing depth, clinical attachment level, plaque index and bleeding on probing on pre-treatment (baseline), 1st month, 3rd month and 6th month follow-up periods

From: The efficacy of Er,Cr:YSGG laser supported periodontal therapy on the reduction of peridodontal disease related oral malodor: a randomized clinical study

Follow-up Time Points

Halitosis (ppb)

Probing depth (PD)(mm)

Clinical atachment Level (CAL)(mm)

Plaque index (PI)

Bleeding on probing (BOP)(per cent)

Group 1

Group 2

P*

Group 1

Group 2

P*

Group 1

Study

P*

Group 1

Group 2

P*

Group 1

Group 2

P*

Baseline values, mean (SD)

89.7 (13.9)

88.2 (15.2)

0,58

5.3 (1.8)

5.3 (1.8)

0,91

2.9 (0.4)

2.9 (0.6)

0,65

2.5 (0.5)

2.4 (0.5)

0,37

77.7 (7.4)

75.1 (7.2)

0,12

1 months, mean (SD)

63.8 (7.3)

60.6 (8.8)

0.10

2.7 (0.4)

2.3 (0.8)

<0.05

2.0 (0.2)

2.0 (0.5)

0.06

1.9 (0.4)

1.8 (0.4)

0.75

48.5 (7.7)

48.5 (9.4)

0.93

3 months, mean (SD)

69.2 (8.7)

54.4 (8.8)

<0.001

2.3 (0.6)

2.2 (0.6)

0.78

1.8 (0.4)

1.8 (0.7)

0.76

1.7 (0.4)

1.6 (0.4)

0.57

47.9(6.6)

40.7 (11.0)

<0.05

6 months, mean (SD)

68.8 (10.2)

57.1 (12.2)

<0.05

2.1 (0.6)

1.9 (0.7)

0.13

1.9 (0.4)

1.8 (0.5)

0.20

1.5(0.5)

1.5 (0.5)

0.71

41.6 (8.6)

37.8 (7.7)

<0.05

P**

<0.01

<0.01

-

<0.01

<0.01

-

<0.01

<0.01

-

<0.01

<0.01

-

<0.01

<0.01

-

  1. Statistically significant data was shown in the bold emphasis
  2. *p values in the columns represents significance between study and control groups (p < 0.05)
  3. **p value in the rows represents significance between measurements on time periods in study and control groups separately (p < 0.05)