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Table 1 Means and SD of buccal (BACL) and palatal (PACL) alveolar bone crest level

From: Three-dimensional evaluation of the effects of injectable platelet rich fibrin (i-PRF) on alveolar bone and root length during orthodontic treatment: a randomized split mouth trial

Variables

N

T0

T1

T0–T1

t value

P value

Experimental side

BACL

21

1.71 ± 0.93

1.80 ± 0.96

− 0.09 ± 0.44

− 0.98

0.33

PACL

21

1.66 ± 1.12

1.91 ± 1.14

− 0.25 ± 0.89

− 1.32

0.20

Control side

BACL

21

1.58 ± 0.97

1.62 ± 1.10

− 0.03 ± 0.44

− 0.39

0.70

PACL

21

1.90 ± 1.28

2.02 ± 1.11

− 0.12 ± 0.52

− 1.08

0.29

Difference between sides

BACL

42

  

− 0.05 ± 0.64

− 0.40

0.69

PACL

42

  

− 0.13 ± 0.91

− 0.66

0.51

  1. SD standard deviation
  2. Paired t test
  3. *Significant P < 0.05