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Table 3 LII measurements in millimeters (mm) at T0 and T1 for each group

From: Intraoral photobiomodulation-induced orthodontic tooth alignment: a preliminary study

  

# of Arches

Mean (SD)

Median

Min–Max

p-value*

T0

 

Control Total

10

5.77 (1.57)

5.80

3.70–8.80

0.1572

 

Upper

3

5.20 (1.30)

5.90

3.70–6.00

 
 

Lower

7

6.01 (1.70)

5.70

4.20–3.70

 
 

PBM Total

18

7.27 (2.99)

6.32

3.72–14.58

0.1572

 

Upper

10

7.91 (3.41)

6.59

4.36–14.58

 
 

Lower

8

6.48 (2.33)

6.06

3.72–10.60

 

T1

 

Control Total

10

0.33 (0.38)

0.25

0.00–1.00

0.3293

 

Upper

3

0.33 (0.58)

0.00

0.00–1.00

 
 

Lower

7

0.33 (0.33)

0.50

0.00–0.80

 
 

PBM Total

18

0.47 (0.41)

0.58

0.00–1.17

0.3293

 

Upper

10

0.44 (0.39)

0.60

0.00–0.99

 
 

Lower

8

0.50 (0.46)

0.55

0.00–1.17

 
  1. *p-value based on two-tailed Mann-Whitney U. A p-value cutoff of 0.05 is used to determine significance